G2-1512 Support case insensitive environment maps

ax-command/pom.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>ax-command</artifactId>
@@ -13,4 +15,13 @@
 
 	<name>Alexandria Command</name>
 	<description>Library for command line programming.</description>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.g2forge.alexandria</groupId>
+			<artifactId>ax-adt</artifactId>
+			<version>${project.version}</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
 </project>

ax-command/src/main/java/com/g2forge/alexandria/command/invocation/environment/SystemEnvironment.java

@@ -1,8 +1,11 @@
 package com.g2forge.alexandria.command.invocation.environment;
 
+import java.util.Collections;
 import java.util.Map;
+import java.util.TreeMap;
 
 import com.g2forge.alexandria.java.core.marker.ISingleton;
+import com.g2forge.alexandria.java.platform.HPlatform;
 
 public class SystemEnvironment implements IEnvironment, ISingleton {
 	protected static final SystemEnvironment INSTANCE = new SystemEnvironment();
@@ -20,6 +23,21 @@ public String apply(String name) {
 
 	@Override
 	public Map<String, String> toMap() {
+		final Map<String, String> systemEnvironment = getSystemEnvironment();
+
+		if (isCaseInsensitive()) {
+			final TreeMap<String, String> retVal = new TreeMap<String, String>(String.CASE_INSENSITIVE_ORDER);
+			retVal.putAll(systemEnvironment);
+			return Collections.unmodifiableSortedMap(retVal);
+		}
+		return systemEnvironment;
+	}
+
+	protected Map<String, String> getSystemEnvironment() {
 		return System.getenv();
 	}
+
+	protected boolean isCaseInsensitive() {
+		return HPlatform.getPlatform().getPathSpec().isCaseSensitive();
+	}
 }

ax-command/src/main/java/com/g2forge/alexandria/command/invocation/environment/modified/ModifiedEnvironment.java

@@ -1,10 +1,9 @@
 package com.g2forge.alexandria.command.invocation.environment.modified;
 
-import java.util.Collections;
-import java.util.LinkedHashMap;
 import java.util.Map;
 
 import com.g2forge.alexandria.command.invocation.environment.IEnvironment;
+import com.g2forge.alexandria.java.core.helpers.HMap;
 
 import lombok.Builder;
 import lombok.Data;
@@ -34,7 +33,7 @@ public IEnvironment simplify() {
 
 	@Override
 	public Map<String, String> toMap() {
-		final Map<String, String> retVal = new LinkedHashMap<>(getBase().toMap());
+		final Map<String, String> retVal = HMap.copy(getBase().toMap());
 		for (Map.Entry<String, IEnvironmentModifier> entry : getModifiers().entrySet()) {
 			final String variable = entry.getKey();
 
@@ -44,6 +43,6 @@ public Map<String, String> toMap() {
 			else retVal.put(variable, modified);
 		}
 
-		return Collections.unmodifiableMap(retVal);
+		return HMap.unmodifiableMap(retVal);
 	}
 }

ax-command/src/test/java/com/g2forge/alexandria/command/main/TestDispatchCommand.java → ax-command/src/test/java/com/g2forge/alexandria/command/command/TestDispatchCommand.java

@@ -1,13 +1,11 @@
-package com.g2forge.alexandria.command.main;
+package com.g2forge.alexandria.command.command;
 
 import java.io.InputStream;
 import java.io.PrintStream;
 
 import org.junit.Assert;
 import org.junit.Test;
 
-import com.g2forge.alexandria.command.command.DispatchCommand;
-import com.g2forge.alexandria.command.command.IStandardCommand;
 import com.g2forge.alexandria.command.exit.Exit;
 import com.g2forge.alexandria.command.exit.IExit;
 import com.g2forge.alexandria.command.invocation.CommandInvocation;

ax-command/src/test/java/com/g2forge/alexandria/command/main/TestStandardCommand.java → ax-command/src/test/java/com/g2forge/alexandria/command/command/TestStandardCommand.java

@@ -1,4 +1,4 @@
-package com.g2forge.alexandria.command.main;
+package com.g2forge.alexandria.command.command;
 
 import java.io.BufferedReader;
 import java.io.InputStream;
@@ -8,7 +8,6 @@
 import org.junit.Assert;
 import org.junit.Test;
 
-import com.g2forge.alexandria.command.command.IStandardCommand;
 import com.g2forge.alexandria.command.command.IStandardCommand.TestResult;
 import com.g2forge.alexandria.command.exit.IExit;
 import com.g2forge.alexandria.command.invocation.CommandInvocation;

ax-command/src/test/java/com/g2forge/alexandria/command/invocation/environment/TestSystemEnvironment.java

@@ -0,0 +1,50 @@
+package com.g2forge.alexandria.command.invocation.environment;
+
+import java.util.Map;
+import java.util.Objects;
+
+import org.junit.Test;
+
+import com.g2forge.alexandria.adt.associative.map.MapBuilder;
+import com.g2forge.alexandria.test.HAssert;
+
+public class TestSystemEnvironment {
+	@Test
+	public void caseInsensitive() {
+		final String key = "Key", value = "Value";
+		final Map<String, String> inputMap = new MapBuilder<>(key, value).build();
+		final Map<String, String> outputMap = new SystemEnvironment() {
+			@Override
+			protected Map<String, String> getSystemEnvironment() {
+				return inputMap;
+			}
+
+			@Override
+			protected boolean isCaseInsensitive() {
+				return true;
+			}
+		}.toMap();
+		HAssert.assertEquals(value, outputMap.get(key));
+		HAssert.assertEquals(value, outputMap.get(key.toUpperCase()));
+		HAssert.assertEquals(value, outputMap.get(key.toLowerCase()));
+	}
+
+	@Test
+	public void caseSensitive() {
+		final String key = "Key", value = "Value";
+		final Map<String, String> inputMap = new MapBuilder<>(key, value).build();
+		final Map<String, String> outputMap = new SystemEnvironment() {
+			@Override
+			protected Map<String, String> getSystemEnvironment() {
+				return inputMap;
+			}
+
+			@Override
+			protected boolean isCaseInsensitive() {
+				return false;
+			}
+		}.toMap();
+		HAssert.assertEquals(value, outputMap.get(key));
+		HAssert.assertFalse(Objects.equals(value, outputMap.get(key.toUpperCase())) && Objects.equals(value, outputMap.get(key.toLowerCase())));
+	}
+}

ax-command/src/test/java/com/g2forge/alexandria/command/invocation/environment/modified/TestModifiedEnvironment.java

@@ -0,0 +1,58 @@
+package com.g2forge.alexandria.command.invocation.environment.modified;
+
+import java.util.Map;
+import java.util.SortedMap;
+
+import org.junit.Test;
+
+import com.g2forge.alexandria.adt.associative.map.MapBuilder;
+import com.g2forge.alexandria.command.invocation.environment.MapEnvironment;
+import com.g2forge.alexandria.command.invocation.environment.SystemEnvironment;
+import com.g2forge.alexandria.test.HAssert;
+
+public class TestModifiedEnvironment {
+	@Test
+	public void unspecified() {
+		final String key = "Key", value = "Value";
+		final ModifiedEnvironment environment = ModifiedEnvironment.builder().base(new MapEnvironment(new MapBuilder<>(key, value).build())).modifier(key, EnvironmentModifier.Unspecified).build();
+		HAssert.assertNull(environment.apply(key));
+		HAssert.assertTrue(environment.toMap().isEmpty());
+	}
+
+	@Test
+	public void inherit() {
+		final String key = "Key", value = "Value";
+		final ModifiedEnvironment environment = ModifiedEnvironment.builder().base(new MapEnvironment(new MapBuilder<>(key, value).build())).modifier(key, EnvironmentModifier.Inherit).build();
+		HAssert.assertEquals(value, environment.apply(key));
+		HAssert.assertEquals(1, environment.toMap().size());
+	}
+
+	@Test
+	public void value() {
+		final String key = "Key", value = "Value", other = "Other";
+		final ModifiedEnvironment environment = ModifiedEnvironment.builder().base(new MapEnvironment(new MapBuilder<>(key, value).build())).modifier(key, new EnvironmentValue(other)).build();
+		HAssert.assertEquals(other, environment.apply(key));
+		HAssert.assertEquals(1, environment.toMap().size());
+	}
+
+	@Test
+	public void caseInsensitive() {
+		final String key = "Key", value = "Value";
+		final Map<String, String> inputMap = new MapBuilder<>(key, value).build();
+		final Map<String, String> outputMap = ModifiedEnvironment.builder().base(new SystemEnvironment() {
+			@Override
+			protected Map<String, String> getSystemEnvironment() {
+				return inputMap;
+			}
+
+			@Override
+			protected boolean isCaseInsensitive() {
+				return true;
+			}
+		}).build().toMap();
+		HAssert.assertEquals(value, outputMap.get(key));
+		HAssert.assertEquals(value, outputMap.get(key.toUpperCase()));
+		HAssert.assertEquals(value, outputMap.get(key.toLowerCase()));
+		HAssert.assertInstanceOf(SortedMap.class, outputMap);
+	}
+}

ax-adt/src/main/java/com/g2forge/alexandria/adt/associative/map/HMap.java → ax-java/src/main/java/com/g2forge/alexandria/java/core/helpers/HMap.java

@@ -1,8 +1,10 @@
-package com.g2forge.alexandria.adt.associative.map;
+package com.g2forge.alexandria.java.core.helpers;
 
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.SortedMap;
+import java.util.TreeMap;
 import java.util.function.Function;
 
 import com.g2forge.alexandria.java.core.marker.Helpers;
@@ -33,4 +35,19 @@ public static <K, V> Map<K, V> merge(Map<K, V>... maps) {
 		}
 		return retVal;
 	}
+
+	public static <T> Map<String, T> copy(Map<String, T> map) {
+		if (map instanceof SortedMap) {
+			final SortedMap<String, T> cast = (SortedMap<String, T>) map;
+			final TreeMap<String, T> retVal = new TreeMap<>(cast.comparator());
+			retVal.putAll(map);
+			return retVal;
+		}
+		return new LinkedHashMap<>(map);
+	}
+
+	public static <K, V> Map<K, V> unmodifiableMap(Map<K, V> map) {
+		if (map instanceof SortedMap) return Collections.unmodifiableSortedMap((SortedMap<K, V>) map);
+		return Collections.unmodifiableMap(map);
+	}
 }

ax-type/src/main/java/com/g2forge/alexandria/generic/type/java/structure/JavaStructureAnalyzer.java

@@ -14,7 +14,7 @@
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 
-import com.g2forge.alexandria.adt.associative.map.HMap;
+import com.g2forge.alexandria.java.core.helpers.HMap;
 import com.g2forge.alexandria.java.core.helpers.HTree;
 import com.g2forge.alexandria.java.reflect.JavaProtection;
 import com.g2forge.alexandria.java.reflect.JavaScope;