org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/newbuilder/NameEnvironment.java - jdt/eclipse.jdt.core - Git at Google

 package org.eclipse.jdt.internal.core.newbuilder;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */

 import org.eclipse.core.resources.*;
 import org.eclipse.jdt.core.*;
 import org.eclipse.jdt.internal.compiler.env.*;
 import org.eclipse.jdt.internal.core.*;

 import org.eclipse.core.runtime.IPath;
 import org.eclipse.jdt.internal.compiler.util.CharOperation;

 import java.io.*;
 import java.util.*;

 public class NameEnvironment implements INameEnvironment {

 ClasspathLocation[] classpathLocations;
 String[] initialTypeNames; // assumed that each name is of the form "a/b/ClassName"
 String[] additionalSourceFilenames; // assumed that each name is of the form "d:/eclipse/Test/a/b/ClassName.java"

 public NameEnvironment(ClasspathLocation[] classpathLocations) {
 	this.classpathLocations = classpathLocations;
 }

 public NameEnvironment(IJavaProject javaProject) {
 	try {
 		IWorkspaceRoot workspaceRoot = javaProject.getProject().getWorkspace().getRoot();
 		IResource outputFolder = workspaceRoot.findMember(javaProject.getOutputLocation());
 		String outputFolderLocation = null;
 		if (outputFolder != null && outputFolder.exists())
 			outputFolderLocation = outputFolder.getLocation().toString();
 		this.classpathLocations = computeLocations(workspaceRoot, javaProject, outputFolderLocation, null, null);
 	} catch(JavaModelException e) {
 		this.classpathLocations = new ClasspathLocation[0];
 	}
 }

 /* Some examples of resolved class path entries.
 * Remember to search class path in the order that it was defined.
 *
 * 1a. typical project with no source folders:
 *   /Test[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test
 * 1b. project with source folders:
 *   /Test/src1[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test/src1
 *   /Test/src2[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test/src2
 *  NOTE: These can be in any order & separated by prereq projects or libraries
 * 1c. project external to workspace (only detectable using getLocation()):
 *   /Test/src[CPE_SOURCE][K_SOURCE] -> d:/eclipse.zzz/src
 *  Need to search source folder & output folder TOGETHER
 *  Use .java file if its more recent than .class file
 *
 * 2. zip files:
 *   D:/j9/lib/jclMax/classes.zip[CPE_LIBRARY][K_BINARY][sourcePath:d:/j9/lib/jclMax/source/source.zip]
 *      -> D:/j9/lib/jclMax/classes.zip
 *  ALWAYS want to take the library path as is
 *
 * 3a. prereq project (regardless of whether it has a source or output folder):
 *   /Test[CPE_PROJECT][K_SOURCE] -> D:/eclipse.test/Test
 *  ALWAYS want to append the output folder & ONLY search for .class files
 */
 public static ClasspathLocation[] computeLocations(
 	IWorkspaceRoot workspaceRoot,
 	IJavaProject javaProject,
 	String outputFolderLocation,
 	ArrayList sourceFolders,
 	SimpleLookupTable prereqOutputFolders) throws JavaModelException {

 	IClasspathEntry[] classpathEntries = ((JavaProject) javaProject).getExpandedClasspath(true, true);
 	int cpCount = 0;
 	int max = classpathEntries.length;
 	ClasspathLocation[] classpathLocations = new ClasspathLocation[max];

 	boolean firstSourceFolder = true;
 	nextEntry : for (int i = 0; i < max; i++) {
 		IClasspathEntry entry = classpathEntries[i];
 		Object target = JavaModel.getTarget(workspaceRoot, entry.getPath(), true);
 		if (target == null) continue nextEntry;

 		if (target instanceof IResource) {
 			IResource resource = (IResource) target;
 			switch(entry.getEntryKind()) {
 				case IClasspathEntry.CPE_SOURCE :
 					if (outputFolderLocation == null || !(resource instanceof IContainer)) continue nextEntry;
 					if (sourceFolders != null) { // normal builder mode
 						sourceFolders.add(resource);
 						classpathLocations[cpCount++] =
 							ClasspathLocation.forSourceFolder(resource.getLocation().toString(), outputFolderLocation);
 					} else if (firstSourceFolder) { // add the output folder only once
 						firstSourceFolder = false;
 						classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(outputFolderLocation);
 					}
 					continue nextEntry;

 				case IClasspathEntry.CPE_PROJECT :
 					if (!(resource instanceof IProject)) continue nextEntry;
 					IProject prereqProject = (IProject) resource;
 					IPath outputLocation = JavaCore.create(prereqProject).getOutputLocation();
 					IResource prereqOutputFolder;
 					if (prereqProject.getFullPath().equals(outputLocation)) {
 						prereqOutputFolder = prereqProject;
 					} else {
 						prereqOutputFolder = workspaceRoot.findMember(outputLocation);
 						if (prereqOutputFolder == null || !prereqOutputFolder.exists() || !(prereqOutputFolder instanceof IFolder))
 							continue nextEntry;
 					}
 					if (prereqOutputFolders != null)
 						prereqOutputFolders.put(prereqProject, prereqOutputFolder);
 					classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(prereqOutputFolder.getLocation().toString());
 					continue nextEntry;

 				case IClasspathEntry.CPE_LIBRARY :
 					if (resource instanceof IFile) {
 						String extension = entry.getPath().getFileExtension();
 						if (!(JavaBuilder.JAR_EXTENSION.equalsIgnoreCase(extension) || JavaBuilder.ZIP_EXTENSION.equalsIgnoreCase(extension)))
 							continue nextEntry;
 						classpathLocations[cpCount++] = ClasspathLocation.forLibrary(resource.getLocation().toString());
 					} else if (resource instanceof IFolder) {
 						classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(resource.getLocation().toString());
 					}
 					continue nextEntry;
 			}
 		} else if (target instanceof File) {
 			String extension = entry.getPath().getFileExtension();
 			if (!(JavaBuilder.JAR_EXTENSION.equalsIgnoreCase(extension) || JavaBuilder.ZIP_EXTENSION.equalsIgnoreCase(extension)))
 				continue nextEntry;
 			classpathLocations[cpCount++] = ClasspathLocation.forLibrary(entry.getPath().toString());
 		}
 	}
 	if (cpCount < max)
 		System.arraycopy(classpathLocations, 0, (classpathLocations = new ClasspathLocation[cpCount]), 0, cpCount);
 	return classpathLocations;
 }

 public static String assembleName(char[] fileName, char[][] packageName, char separator) {
 	return new String(CharOperation.concatWith(packageName, fileName, separator));
 }

 public static String assembleName(String fileName, char[][] packageName, char separator) {
 	return new String(
 		CharOperation.concatWith(
 			packageName,
 			fileName == null ? null : fileName.toCharArray(),
 			separator));
 }

 private NameEnvironmentAnswer findClass(char[] name, char[][] packageName) {
 	String fullName = assembleName(name, packageName, '/');
 	if (initialTypeNames != null)
 		for (int i = 0, length = initialTypeNames.length; i < length; i++)
 			if (fullName.equals(initialTypeNames[i]))
 				return null; // looking for a file which we know was provided at the beginning of the compilation
 	for (int i = 0, length = classpathLocations.length; i < length; i++) {
 		NameEnvironmentAnswer answer = classpathLocations[i].findClass(name, packageName);
 		if (answer != null) return answer;
 	}
 	return null;
 }

 public NameEnvironmentAnswer findType(char[][] compoundName) {
 	if (compoundName == null) return null;
 	return findClass(
 		compoundName[compoundName.length - 1],
 		CharOperation.subarray(compoundName, 0, compoundName.length - 1));
 }

 public NameEnvironmentAnswer findType(char[] name, char[][] compoundName) {
 	if (name == null) return null;
 	return findClass(name, compoundName);
 }

 public boolean isPackage(char[][] compoundName, char[] packageName) {
 	if (compoundName == null)
 		compoundName = new char[0][];

 	for (int i = 0, length = classpathLocations.length; i < length; i++)
 		if (classpathLocations[i].isPackage(compoundName, packageName))
 			return true;
 	return false;
 }

 public void cleanup() {
 	for (int i = 0, length = classpathLocations.length; i < length; i++){
 		classpathLocations[i].cleanup();
 	}
 }

 public void setNames(String[] initialTypeNames, String[] additionalSourceFilenames) {
 	this.initialTypeNames = initialTypeNames;
 	this.additionalSourceFilenames = additionalSourceFilenames;
 	for (int i = 0, length = classpathLocations.length; i < length; i++) {
 		ClasspathLocation classpath = classpathLocations[i];
 		classpath.reset();
 		if (classpath instanceof ClasspathMultiDirectory)
 			((ClasspathMultiDirectory) classpath).nameEnvironment = this;
 	}
 }
 }
	package org.eclipse.jdt.internal.core.newbuilder;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/

	import org.eclipse.core.resources.*;
	import org.eclipse.jdt.core.*;
	import org.eclipse.jdt.internal.compiler.env.*;
	import org.eclipse.jdt.internal.core.*;

	import org.eclipse.core.runtime.IPath;
	import org.eclipse.jdt.internal.compiler.util.CharOperation;

	import java.io.*;
	import java.util.*;

	public class NameEnvironment implements INameEnvironment {

	ClasspathLocation[] classpathLocations;
	String[] initialTypeNames; // assumed that each name is of the form "a/b/ClassName"
	String[] additionalSourceFilenames; // assumed that each name is of the form "d:/eclipse/Test/a/b/ClassName.java"

	public NameEnvironment(ClasspathLocation[] classpathLocations) {
	this.classpathLocations = classpathLocations;
	}

	public NameEnvironment(IJavaProject javaProject) {
	try {
	IWorkspaceRoot workspaceRoot = javaProject.getProject().getWorkspace().getRoot();
	IResource outputFolder = workspaceRoot.findMember(javaProject.getOutputLocation());
	String outputFolderLocation = null;
	if (outputFolder != null && outputFolder.exists())
	outputFolderLocation = outputFolder.getLocation().toString();
	this.classpathLocations = computeLocations(workspaceRoot, javaProject, outputFolderLocation, null, null);
	} catch(JavaModelException e) {
	this.classpathLocations = new ClasspathLocation[0];
	}
	}

	/* Some examples of resolved class path entries.
	* Remember to search class path in the order that it was defined.
	*
	* 1a. typical project with no source folders:
	* /Test[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test
	* 1b. project with source folders:
	* /Test/src1[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test/src1
	* /Test/src2[CPE_SOURCE][K_SOURCE] -> D:/eclipse.test/Test/src2
	* NOTE: These can be in any order & separated by prereq projects or libraries
	* 1c. project external to workspace (only detectable using getLocation()):
	* /Test/src[CPE_SOURCE][K_SOURCE] -> d:/eclipse.zzz/src
	* Need to search source folder & output folder TOGETHER
	* Use .java file if its more recent than .class file
	*
	* 2. zip files:
	* D:/j9/lib/jclMax/classes.zip[CPE_LIBRARY][K_BINARY][sourcePath:d:/j9/lib/jclMax/source/source.zip]
	* -> D:/j9/lib/jclMax/classes.zip
	* ALWAYS want to take the library path as is
	*
	* 3a. prereq project (regardless of whether it has a source or output folder):
	* /Test[CPE_PROJECT][K_SOURCE] -> D:/eclipse.test/Test
	* ALWAYS want to append the output folder & ONLY search for .class files
	*/
	public static ClasspathLocation[] computeLocations(
	IWorkspaceRoot workspaceRoot,
	IJavaProject javaProject,
	String outputFolderLocation,
	ArrayList sourceFolders,
	SimpleLookupTable prereqOutputFolders) throws JavaModelException {

	IClasspathEntry[] classpathEntries = ((JavaProject) javaProject).getExpandedClasspath(true, true);
	int cpCount = 0;
	int max = classpathEntries.length;
	ClasspathLocation[] classpathLocations = new ClasspathLocation[max];

	boolean firstSourceFolder = true;
	nextEntry : for (int i = 0; i < max; i++) {
	IClasspathEntry entry = classpathEntries[i];
	Object target = JavaModel.getTarget(workspaceRoot, entry.getPath(), true);
	if (target == null) continue nextEntry;

	if (target instanceof IResource) {
	IResource resource = (IResource) target;
	switch(entry.getEntryKind()) {
	case IClasspathEntry.CPE_SOURCE :
	if (outputFolderLocation == null \|\| !(resource instanceof IContainer)) continue nextEntry;
	if (sourceFolders != null) { // normal builder mode
	sourceFolders.add(resource);
	classpathLocations[cpCount++] =
	ClasspathLocation.forSourceFolder(resource.getLocation().toString(), outputFolderLocation);
	} else if (firstSourceFolder) { // add the output folder only once
	firstSourceFolder = false;
	classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(outputFolderLocation);
	}
	continue nextEntry;

	case IClasspathEntry.CPE_PROJECT :
	if (!(resource instanceof IProject)) continue nextEntry;
	IProject prereqProject = (IProject) resource;
	IPath outputLocation = JavaCore.create(prereqProject).getOutputLocation();
	IResource prereqOutputFolder;
	if (prereqProject.getFullPath().equals(outputLocation)) {
	prereqOutputFolder = prereqProject;
	} else {
	prereqOutputFolder = workspaceRoot.findMember(outputLocation);
	if (prereqOutputFolder == null \|\| !prereqOutputFolder.exists() \|\| !(prereqOutputFolder instanceof IFolder))
	continue nextEntry;
	}
	if (prereqOutputFolders != null)
	prereqOutputFolders.put(prereqProject, prereqOutputFolder);
	classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(prereqOutputFolder.getLocation().toString());
	continue nextEntry;

	case IClasspathEntry.CPE_LIBRARY :
	if (resource instanceof IFile) {
	String extension = entry.getPath().getFileExtension();
	if (!(JavaBuilder.JAR_EXTENSION.equalsIgnoreCase(extension) \|\| JavaBuilder.ZIP_EXTENSION.equalsIgnoreCase(extension)))
	continue nextEntry;
	classpathLocations[cpCount++] = ClasspathLocation.forLibrary(resource.getLocation().toString());
	} else if (resource instanceof IFolder) {
	classpathLocations[cpCount++] = ClasspathLocation.forBinaryFolder(resource.getLocation().toString());
	}
	continue nextEntry;
	}
	} else if (target instanceof File) {
	String extension = entry.getPath().getFileExtension();
	if (!(JavaBuilder.JAR_EXTENSION.equalsIgnoreCase(extension) \|\| JavaBuilder.ZIP_EXTENSION.equalsIgnoreCase(extension)))
	continue nextEntry;
	classpathLocations[cpCount++] = ClasspathLocation.forLibrary(entry.getPath().toString());
	}
	}
	if (cpCount < max)
	System.arraycopy(classpathLocations, 0, (classpathLocations = new ClasspathLocation[cpCount]), 0, cpCount);
	return classpathLocations;
	}

	public static String assembleName(char[] fileName, char[][] packageName, char separator) {
	return new String(CharOperation.concatWith(packageName, fileName, separator));
	}

	public static String assembleName(String fileName, char[][] packageName, char separator) {
	return new String(
	CharOperation.concatWith(
	packageName,
	fileName == null ? null : fileName.toCharArray(),
	separator));
	}

	private NameEnvironmentAnswer findClass(char[] name, char[][] packageName) {
	String fullName = assembleName(name, packageName, '/');
	if (initialTypeNames != null)
	for (int i = 0, length = initialTypeNames.length; i < length; i++)
	if (fullName.equals(initialTypeNames[i]))
	return null; // looking for a file which we know was provided at the beginning of the compilation
	for (int i = 0, length = classpathLocations.length; i < length; i++) {
	NameEnvironmentAnswer answer = classpathLocations[i].findClass(name, packageName);
	if (answer != null) return answer;
	}
	return null;
	}

	public NameEnvironmentAnswer findType(char[][] compoundName) {
	if (compoundName == null) return null;
	return findClass(
	compoundName[compoundName.length - 1],
	CharOperation.subarray(compoundName, 0, compoundName.length - 1));
	}

	public NameEnvironmentAnswer findType(char[] name, char[][] compoundName) {
	if (name == null) return null;
	return findClass(name, compoundName);
	}

	public boolean isPackage(char[][] compoundName, char[] packageName) {
	if (compoundName == null)
	compoundName = new char[0][];

	for (int i = 0, length = classpathLocations.length; i < length; i++)
	if (classpathLocations[i].isPackage(compoundName, packageName))
	return true;
	return false;
	}

	public void cleanup() {
	for (int i = 0, length = classpathLocations.length; i < length; i++){
	classpathLocations[i].cleanup();
	}
	}

	public void setNames(String[] initialTypeNames, String[] additionalSourceFilenames) {
	this.initialTypeNames = initialTypeNames;
	this.additionalSourceFilenames = additionalSourceFilenames;
	for (int i = 0, length = classpathLocations.length; i < length; i++) {
	ClasspathLocation classpath = classpathLocations[i];
	classpath.reset();
	if (classpath instanceof ClasspathMultiDirectory)
	((ClasspathMultiDirectory) classpath).nameEnvironment = this;
	}
	}
	}