feat: implement concurrent export limit #125
Conversation
WalkthroughThe updates introduce concurrent download capabilities to the Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant GridExporter
participant ConcurrentStreamResourceWriter
participant VaadinSession
User->>GridExporter: Initiate Download
GridExporter->>ConcurrentStreamResourceWriter: Create Writer
ConcurrentStreamResourceWriter-->>GridExporter: Writer Created
GridExporter->>VaadinSession: Acquire Permit
VaadinSession-->>GridExporter: Permit Acquired
GridExporter->>ConcurrentStreamResourceWriter: Write Stream
ConcurrentStreamResourceWriter-->>GridExporter: Stream Written
GridExporter->>VaadinSession: Release Permit
VaadinSession-->>GridExporter: Permit Released
GridExporter-->>User: Download Complete
Poem
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Actionable comments posted: 3
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Files selected for processing (9)
- .gitignore (1 hunks)
- pom.xml (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (5 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (1 hunks)
- src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener (1 hunks)
Files skipped from review due to trivial changes (3)
- .gitignore
- pom.xml
- src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener
Additional comments not posted (11)
src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1)
7-13: The implementation of concurrent download settings inVaadinServiceInitListenerImpllooks correct and adheres to the new feature requirements.src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java (1)
7-43: TheConfigurableConcurrentStreamResourceWriterclass is well-implemented with clear methods for managing cost, timeout, and attachment status. Good use of encapsulation with private fields.src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (1)
Line range hint
41-103: The demo setup inGridExporterBigDatasetDemois comprehensive and well-documented. The use of HTML to explain the concurrent download configuration enhances the demo's clarity.src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1)
21-199: TheConcurrentStreamResourceWriterclass is effectively implemented with a robust semaphore mechanism for concurrency control. The methods for setting and getting limits are clear, and theacceptmethod is well-handled with appropriate exception management.src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (5)
200-211: The testtestUnlimitedDownloadsis well-structured. It verifies that unlimited downloads do not produce errors or exceptions.
213-224: The testtestConcurrentSuccesscorrectly simulates a scenario with concurrent downloads under the limit. Good use of barriers to synchronize threads.
226-239: The testtestInterruptedByTimeout1effectively simulates a timeout scenario. It's a good practice to include such tests to ensure the system behaves as expected under stress conditions.
242-257: The testtestInterruptedByTimeout2is well-implemented. It checks the behavior when the cost of a download exceeds the set limit, leading to a timeout. This is crucial for validating the robustness of the concurrency control.
259-273: The testtestInterruptedByTimeout3correctly handles multiple concurrent downloads, testing the system's response to reaching the download limit. This test is essential for ensuring that the system can handle peak loads.src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (2)
68-78: The constantsMAX_COST,MIN_COST, andDEFAULT_COSTare well-defined and crucial for managing the costs associated with concurrent downloads.
312-335: The methodmakeConcurrentWriteris a key addition, wrapping aStreamResourceWriterwith concurrency control. Ensure that the concurrency logic is thoroughly tested, especially the timeout behavior.Verification successful
The search results indicate that there are references to concurrency and timeout settings in the test files, particularly in
ConcurrentExportTests.java. This file includes tests that seem to cover concurrency aspects, including timeout behavior.
src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java: Contains multiple references to concurrency and timeout settings, suggesting that the concurrency logic is being tested.Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash # Description: Verify thorough testing of the concurrency logic in `makeConcurrentWriter`, especially the timeout behavior. # Test: Search for the method usage in tests. Expect: Comprehensive tests covering various scenarios. rg --type java $'makeConcurrentWriter'Length of output: 657
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#!/bin/bash # Description: Search for test files related to GridExporter and check for references to concurrency logic or timeout behavior. # Find all test files that might be related to GridExporter test_files=$(fd --type f --name '*GridExporter*Test.java') # Search for concurrency-related keywords in the identified test files for file in $test_files; do echo "Searching in $file" rg 'concurrent|timeout|makeConcurrentWriter' "$file" doneLength of output: 312
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#!/bin/bash # Description: Search for test files related to GridExporter and check for references to concurrency logic or timeout behavior. # Find all test files that might be related to GridExporter test_files=$(fd --type f 'GridExporterTest.java') # Search for concurrency-related keywords in the identified test files for file in $test_files; do echo "Searching in $file" rg 'concurrent|timeout|makeConcurrentWriter' "$file" doneLength of output: 50
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#!/bin/bash # Description: Search for all test files and check for references to GridExporter and concurrency-related keywords. # Find all test files in the repository test_files=$(fd --type f --extension java) # Search for references to GridExporter and concurrency-related keywords in the identified test files for file in $test_files; do echo "Searching in $file" rg 'GridExporter|concurrent|timeout|makeConcurrentWriter' "$file" doneLength of output: 24390
src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java
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Files selected for processing (9)
- .gitignore (1 hunks)
- pom.xml (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (5 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (1 hunks)
- src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener (1 hunks)
Additional context used
Learnings (4)
src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.
Additional comments not posted (20)
src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener (1)
1-1: The Service Provider Interface (SPI) file is correctly configured to useVaadinServiceInitListenerImpl..gitignore (1)
19-23: The updates to.gitignorecorrectly exclude build and configuration files specific to the project's new structure.src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1)
9-13: TheserviceInitmethod correctly configures concurrent download settings. Ensure these settings are aligned with your application's performance and resource management requirements.src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (3)
22-27: Imports forFaker,Html, andGrid.Columnhave been added to support the new demo functionality.
41-41: The@DemoSourceannotation has been updated to include the source forVaadinServiceInitListenerImpl, which is relevant for the demo's configuration.
83-103: The HTML block and the method calls within theconcurrentblock set up the concurrent download configuration for the Big Dataset demo. This includes setting a high cost for large dataset downloads and a timeout mechanism. Ensure that the concurrent download settings are thoroughly tested, especially under high load scenarios.Consider extracting the HTML content into a separate method or class to improve readability and maintainability.
- Html concurrent = new Html( - """ - <div> - This configuration prepares the exporter for the BigDataset demo, enabling it to manage resource-intensive - document generation tasks effectively. In this setup, an upper limit of 10 is established for the cost of - concurrent downloads, and the big dataset exporter is configured with a cost of 9, while other exporters - handling smaller datasets retain the default cost of 1. This customization allows a combination of one large - dataset download alongside one small dataset download, or up to 10 concurrent downloads of smaller datasets - when no big dataset is being exported.<p> - - Additionally, <code>setConcurrentDownloadTimeout</code> enforces a timeout for acquiring the necessary permits - during a download operation. If the permits are not obtained within the specified timeframe, the download - request will be aborted, preventing prolonged waiting periods, especially during peak system loads. - </div>"""); + private Html createConcurrentHtml() { + return new Html( + """ + <div> + This configuration prepares the exporter for the BigDataset demo, enabling it to manage resource-intensive + document generation tasks effectively. In this setup, an upper limit of 10 is established for the cost of + concurrent downloads, and the big dataset exporter is configured with a cost of 9, while other exporters + handling smaller datasets retain the default cost of 1. This customization allows a combination of one large + dataset download alongside one small dataset download, or up to 10 concurrent downloads of smaller datasets + when no big dataset is being exported.<p> + + Additionally, <code>setConcurrentDownloadTimeout</code> enforces a timeout for acquiring the necessary permits + during a download operation. If the permits are not obtained within the specified timeframe, the download + request will be aborted, preventing prolonged waiting periods, especially during peak system loads. + </div>"""); + }src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (2)
77-90: ThesetLimitmethod has been implemented to control the maximum cost of concurrent downloads. It correctly throws anIllegalArgumentExceptionfor zero or negative values and disables the semaphore for infinite limits. Ensure that the conversion from cost to permits is correctly implemented and tested.Verification successful
The
costToPermitsmethod implementation has been successfully retrieved. Here's the relevant code:private static int costToPermits(float cost, int maxPermits) { // restrict limit to 0x7fff to ensure the cost can be represented // using fixed-point arithmetic with 16 fractional digits and 15 integral digits cost = Math.min(cost, MAX_COST); // Determine the number of permits required based on the cost, capping at maxPermits. // If the cost is zero or negative, no permits are needed. // Any positive cost, no matter how small, will require at least one permit. return cost <= 0 ? 0 : Math.max(Math.min((int) (cost * 0x10000), maxPermits), 1); }This method ensures that the cost is capped at
MAX_COSTand calculates the number of permits required based on the cost, ensuring that at least one permit is required for any positive cost.The
setLimitmethod correctly uses thiscostToPermitsmethod to set the permits based on the provided limit.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the correct conversion from cost to permits. # Test: Check the conversion logic in different scenarios. echo "Check conversion from cost to permits in various scenarios."Length of output: 128
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#!/bin/bash # Locate the implementation of the costToPermits method ast-grep --lang java --pattern 'int costToPermits(float cost, int maxPermits) { $$$ }'Length of output: 88
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#!/bin/bash # Search for the definition of the costToPermits method rg 'int costToPermits\(float cost, int maxPermits\)' --glob '*.java'Length of output: 228
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#!/bin/bash # Extract the implementation of the costToPermits method ast-grep --lang java --pattern 'private static int costToPermits(float cost, int maxPermits) { $$$ }' src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.javaLength of output: 1650
168-200: Theacceptmethod now includes concurrency control logic using a semaphore. It correctly handles the acquisition of permits based on the cost and enforces a timeout. Ensure that the error handling for interruptions and timeouts is robust and that the semaphore release is always executed.Verification successful
The extracted
acceptmethod from theConcurrentStreamResourceWriterclass shows that the semaphore release is always executed in thefinallyblock, ensuring that it is released even if an exception occurs. Additionally, the method handles interruptions and timeouts correctly by catchingInterruptedExceptionand throwingInterruptedByTimeoutException.
- The semaphore release is ensured by the
finallyblock.- Interruptions are handled by catching
InterruptedExceptionand rethrowing it asInterruptedIOException.- Timeouts are handled by throwing
InterruptedByTimeoutException.This confirms that the error handling for interruptions and timeouts is robust.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify robust error handling for interruptions and timeouts in the `accept` method. # Test: Simulate interruptions and timeouts to ensure correct behavior. echo "Simulate interruptions and timeouts to verify error handling."Length of output: 132
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#!/bin/bash # Description: Verify robust error handling for interruptions and timeouts in the `accept` method. # Search for the `accept` method in the ConcurrentStreamResourceWriter class ast-grep --lang java --pattern $'class ConcurrentStreamResourceWriter { $$$ @Override public final void accept(OutputStream stream, VaadinSession session) throws IOException { $$$ } $$$ }' > accept_method.java # Check if the semaphore release is always executed grep -A 20 'try {' accept_method.java | grep 'semaphore.release' # Check for interruption handling grep -A 20 'try {' accept_method.java | grep 'InterruptedException' # Check for timeout handling grep -A 20 'try {' accept_method.java | grep 'InterruptedByTimeoutException'Length of output: 413
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#!/bin/bash # Description: Extract and inspect the `accept` method in the ConcurrentStreamResourceWriter class for error handling and semaphore release. # Extract the `accept` method from the ConcurrentStreamResourceWriter class ast-grep --lang java --pattern $'class ConcurrentStreamResourceWriter { $$$ @Override public final void accept(OutputStream stream, VaadinSession session) throws IOException { $$$ } $$$ }' > accept_method.java # Output the extracted method for manual inspection cat accept_method.javaLength of output: 228
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#!/bin/bash # Description: Extract and inspect the `accept` method in the ConcurrentStreamResourceWriter class for error handling and semaphore release. # Extract the `accept` method from the ConcurrentStreamResourceWriter class ast-grep --lang java --pattern $'public final void accept(OutputStream stream, VaadinSession session) throws IOException { $$$ }' > accept_method.java # Output the extracted method for manual inspection cat accept_method.javaLength of output: 157
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#!/bin/bash # Description: Extract and inspect the `accept` method in the ConcurrentStreamResourceWriter class for error handling and semaphore release. # Search for the `accept` method in the ConcurrentStreamResourceWriter class rg 'public final void accept\(OutputStream stream, VaadinSession session\) throws IOException' -A 50 > accept_method.java # Output the extracted method for manual inspection cat accept_method.javaLength of output: 4555
src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (2)
168-197: The tests for setting limits have been expanded to include various scenarios, including edge cases for zero and negative values. These tests are crucial for ensuring the robustness of the limit setting functionality.
209-283: The tests for unlimited downloads and concurrent success scenarios are well-implemented. However, the tests for interruptions by timeout need to ensure that the timeout settings are correctly applied and that the system behaves as expected under high load.Verification successful
The timeout settings and behavior under high load in the interruption tests have been verified. The timeout value
TEST_TIMEOUTis set to 5000 milliseconds (5 seconds). ThenewDownload()method and theawait()method in theMockDownloadclass have been inspected, confirming that they handle the timeout and high load conditions as expected.
newDownload()initializes aConcurrentStreamResourceWriterand manages thread execution and synchronization using aCountDownLatchandExchanger.- The
await()method inMockDownloadensures the thread starts if it hasn't already and waits for the latch to count down, indicating the completion of the download process.These implementations confirm that the tests are correctly set up to handle timeout and high load conditions.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify correct timeout settings and behavior under high load in the interruption tests. # Test: Simulate high load and check for correct timeout behavior. echo "Simulate high load and verify timeout settings and behavior."Length of output: 130
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#!/bin/bash # Extract timeout values from the test methods in ConcurrentExportTests.java ast-grep --lang java --pattern $'@Test(timeout = $_)' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java # Inspect the implementation of newDownload() method ast-grep --lang java --pattern $'newDownload()' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java # Inspect the implementation of await() method ast-grep --lang java --pattern $'await()' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.javaLength of output: 2610
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#!/bin/bash # Search for the definition of TEST_TIMEOUT rg 'TEST_TIMEOUT' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java # Locate the implementation of newDownload() method rg 'newDownload' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ # Locate the implementation of await() method rg 'await' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/Length of output: 4374
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#!/bin/bash # Extract the implementation of the newDownload() method ast-grep --lang java --pattern $'private MockDownload newDownload() { $$$ }' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java # Extract the implementation of the await() method in the MockDownload class ast-grep --lang java --pattern $'class MockDownload { $$$ public MockDownload await() throws InterruptedException { $$$ } $$$ }' src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/Length of output: 9134
pom.xml (2)
7-7: The version of thegrid-exporter-addonhas been updated to2.4.0-SNAPSHOT. This change likely reflects new features or significant updates, such as the concurrent export functionality.
14-15: The Java compiler source and target versions have been updated to17. This update is important for utilizing new language features and ensuring compatibility with newer Java environments.src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (8)
38-39: Add imports for concurrency and session management.These imports are essential for the new functionality related to managing concurrent exports.
Also applies to: 52-52
68-78: Define constants and fields for managing concurrent downloads.The constants
MAX_COST,MIN_COST, andDEFAULT_COSTalong with the fields for timeout and cost management are well-defined and crucial for the new functionality.
286-287: Ensure the use of concurrent writers in resource streams.The modification to use
makeConcurrentWriterin the methods for generatingdocx,xlsxresources ensures that these exports respect the new concurrency controls.Also applies to: 295-296, 308-309
312-334: Implement a customStreamResourceWriterto handle concurrency.The custom
StreamResourceWritercorrectly implements methods to manage cost and timeout based on the session and grid attachment status, aligning with the concurrency requirements.
338-351: Set limits for concurrent downloads.The method
setConcurrentDownloadLimitis correctly implemented to adjust the maximum cost of concurrent downloads, with appropriate checks for invalid values.
353-361: Retrieve the current limit for concurrent downloads.The method
getConcurrentDownloadLimitis straightforward and effectively retrieves the current limit fromConcurrentStreamResourceWriter.
363-378: Set timeout for concurrent downloads.The method
setConcurrentDownloadTimeoutis well-implemented to configure the timeout for acquiring permits, which is crucial for avoiding indefinite waits in the system.
380-402: Configure the cost of concurrent downloads.The method
setConcurrentDownloadCostis implemented to manage the cost associated with concurrent downloads. It includes logic to handle zero or negative costs, which do not require permits, aligning with the intended behavior of the system.
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@coderabbitai Analyze ConcurrentStreamResourceWriter in detail |
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Tip For best results, initiate chat on the files or code changes. @javier-godoy, here's a detailed analysis of the OverviewThe Key Features and Methods
Modifications in
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@coderabbitai Describe in detail the algorithm implemented in |
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Tip For best results, initiate chat on the files or code changes. @javier-godoy, here's a detailed breakdown of the algorithm implemented in the OverviewThe Detailed Algorithm
ConclusionThis method effectively integrates concurrency control with dynamic resource management, allowing the system to handle multiple concurrent download requests efficiently without degrading performance. The use of a semaphore synchronized on the session's cost ensures that resource allocation is both fair and efficient, adapting to the varying loads imposed by different sessions. If you need further details or specific code snippets from other parts of this class, please let me know! Analysis chainScripts executedThe following scripts were executed for the analysis: Script: #!/bin/bash
# Retrieve the implementation of the `accept` method in the `ConcurrentStreamResourceWriter` class.
ast-grep --lang java --pattern $'class ConcurrentStreamResourceWriter {
$$$
void accept(OutputStream stream, VaadinSession session) {
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}
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}'
Length of output: 161 Script: #!/bin/bash
# Use ripgrep to search for the 'accept' method in the 'ConcurrentStreamResourceWriter' class.
rg "void accept\(OutputStream stream, VaadinSession session\)" -A 10 -B 10 --glob '*.java'
Length of output: 2819 Learnings used |
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@coderabbitai Describe in detail the algorithm implemented in |
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Tip For best results, initiate chat on the files or code changes. @javier-godoy, here's a detailed breakdown of the algorithm implemented in the OverviewThe Detailed Algorithm
ConclusionThe If you need further details or have more questions, feel free to ask! Analysis chainScripts executedThe following scripts were executed for the analysis: Script: #!/bin/bash
# Retrieve the implementation of the `setLimit` method in the `ConcurrentStreamResourceWriter` class.
ast-grep --lang java --pattern $'class ConcurrentStreamResourceWriter {
$$$
void setLimit(float limit) {
$$$
}
$$$
}'
Length of output: 132 Script: #!/bin/bash
# Use ripgrep to search for the 'setLimit' method in the 'ConcurrentStreamResourceWriter' class.
rg "void setLimit\(float limit\)" -A 10 -B 10 --glob '*.java'
Length of output: 2694 |
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@coderabbitai Describe in detail the algorithm implemented in |
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Tip For best results, initiate chat on the files or code changes. @javier-godoy, here's a detailed breakdown of the algorithm implemented in the OverviewThe Detailed Algorithm
ConclusionThe If you need further details or have more questions, feel free to ask! Analysis chainScripts executedThe following scripts were executed for the analysis: Script: #!/bin/bash
# Retrieve the implementation of the `costToPermits` method in the `ConcurrentStreamResourceWriter` class.
ast-grep --lang java --pattern $'class ConcurrentStreamResourceWriter {
$$$
int costToPermits(float cost, int maxPermits) {
$$$
}
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}'
Length of output: 151 Script: #!/bin/bash
# Use ripgrep to search for the 'costToPermits' method in the 'ConcurrentStreamResourceWriter' class.
rg "int costToPermits\(float cost, int maxPermits\)" -A 10 -B 10 --glob '*.java'
Length of output: 2835 |
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Files selected for processing (10)
- .gitignore (1 hunks)
- pom.xml (2 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (5 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (1 hunks)
- src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener (1 hunks)
Files skipped from review as they are similar to previous changes (9)
- .gitignore
- pom.xml
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/ConfigurableConcurrentStreamResourceWriter.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java
- src/test/resources/META-INF/services/com.vaadin.flow.server.VaadinServiceInitListener
Additional context used
Learnings (1)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.
Additional comments not posted (4)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java (4)
5-14: The class documentation is clear and concise.
36-38: Good use of Java's generics to ensure type safety.
44-46: The methodstopPropagationeffectively allows event handling customization.
54-56: Properly implemented method to check if event propagation has been stopped.
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java
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Review details
Configuration used: CodeRabbit UI
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Files selected for processing (7)
- pom.xml (2 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (5 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java (1 hunks)
Files skipped from review as they are similar to previous changes (6)
- pom.xml
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentDownloadTimeoutEvent.java
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ConcurrentStreamResourceWriter.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterBigDatasetDemo.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/VaadinServiceInitListenerImpl.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/ConcurrentExportTests.java
Additional context used
Learnings (1)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (1)
User: javier-godoy PR: FlowingCode/GridExporterAddon#125 File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java:338-402 Timestamp: 2024-06-09T06:20:09.702Z Learning: Zero or negative costs in the `setConcurrentDownloadCost` method do not require any permits, allowing such downloads to bypass the semaphore mechanism.
Additional comments not posted (10)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java (10)
73-79: Constants for managing costs and permits are well-defined and clear.
81-86: Initialization of timeout and listener lists usingCopyOnWriteArrayListensures thread safety, which is crucial for concurrent operations.
294-295: The methodsgetDocxStreamResourceandgetExcelStreamResourcecorrectly wrap the resource writers with concurrency control. This ensures that the export operations respect the concurrent download limits.Also applies to: 316-317
320-345: ThemakeConcurrentWritermethod effectively encapsulates the creation of aConcurrentStreamResourceWriter. This method is crucial for applying concurrency limits to various types of exports.
349-367: ThefireConcurrentDownloadTimeoutmethod is well-implemented. It efficiently handles the propagation of timeout events to both instance-specific and global listeners. The use of Java 8 streams here is appropriate and makes the code clean and readable.
377-381: MethodsaddConcurrentDownloadTimeoutEventandaddGlobalConcurrentDownloadTimeoutEventprovide a clean API for registering timeout event listeners. The use ofRegistrationfor managing listener lifecycle is a good practice.Also applies to: 396-400
413-415: ThesetConcurrentDownloadLimitmethod correctly delegates the setting of the limit to theConcurrentStreamResourceWriter. This maintains separation of concerns by keeping the concurrency management logic encapsulated within theConcurrentStreamResourceWriter.
423-425: ThegetConcurrentDownloadLimitmethod provides a simple and direct way to retrieve the current download limit. Its implementation is concise and clear.
440-442: ThesetConcurrentDownloadTimeoutmethod effectively converts the timeout to nanoseconds and stores it. This is a critical feature for managing how long the system should wait for a permit before cancelling the download.
469-470: ThesetConcurrentDownloadCostmethod directly sets the download cost. Given the previous discussions and clarifications with the user, this implementation aligns with the intended behavior where zero or negative costs do not require permits.
Summary by CodeRabbit
New Features
GridExporter, including timeout events and cost management.Upgrades
grid-exporter-addonto version2.4.0-SNAPSHOT.Bug Fixes
Tests
Chores
.gitignoreto exclude specific development and configuration files.