org.eclipse.jdt/org.eclipse.jdt.core/3.20.0 : org/eclipse/jdt/internal/core/MovePackageFragmentRootOperation.java

MovePackageFragmentRootOperation
http://www.eclipse.org/jdt: Java Development Tools Core (Eclipse Foundation)
Eclipse Public License - v 2.0
Copyright (c) 2000, 2008 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.core;

import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.*;

public class MovePackageFragmentRootOperation extends CopyPackageFragmentRootOperation {
	/*
	 * Renames the classpath entries equal to the given path in the given project.
	 * If an entry with the destination path already existed, remove it.
	 */
	protected void renameEntryInClasspath(IPath rootPath, IJavaProject project) throws JavaModelException {

		IClasspathEntry[] classpath = project.getRawClasspath();
		IClasspathEntry[] newClasspath = null;
		int cpLength = classpath.length;
		int newCPIndex = -1;

		for (int i = 0; i < cpLength; i++) {
			IClasspathEntry entry = classpath[i];
			IPath entryPath = entry.getPath();
			if (rootPath.equals(entryPath)) {
				// rename entry
				if (newClasspath == null) {
					newClasspath = new IClasspathEntry[cpLength];
					System.arraycopy(classpath, 0, newClasspath, 0, i);
					newCPIndex = i;
				}
				newClasspath[newCPIndex++] = copy(entry);
			} else if (this.destination.equals(entryPath)) {
				// remove entry equals to destination
				if (newClasspath == null) {
					newClasspath = new IClasspathEntry[cpLength];
					System.arraycopy(classpath, 0, newClasspath, 0, i);
					newCPIndex = i;
				}
			} else if (entry.getEntryKind() == IClasspathEntry.CPE_SOURCE) {
				// update exclusion/inclusion patterns
				IPath projectRelativePath = rootPath.removeFirstSegments(1);
				IPath[] newExclusionPatterns = renamePatterns(projectRelativePath, entry.getExclusionPatterns());
				IPath[] newInclusionPatterns = renamePatterns(projectRelativePath, entry.getInclusionPatterns());
				if (newExclusionPatterns != null || newInclusionPatterns != null) {
					if (newClasspath == null) {
						newClasspath = new IClasspathEntry[cpLength];
						System.arraycopy(classpath, 0, newClasspath, 0, i);
						newCPIndex = i;
					}
					newClasspath[newCPIndex++] =
						JavaCore.newSourceEntry(
							entry.getPath(),
							newInclusionPatterns == null ? entry.getInclusionPatterns() : newInclusionPatterns,
							newExclusionPatterns == null ? entry.getExclusionPatterns() : newExclusionPatterns,
							entry.getOutputLocation(),
							entry.getExtraAttributes());
				} else if (newClasspath != null) {
					newClasspath[newCPIndex++] = entry;
				}
			} else if (newClasspath != null) {
				newClasspath[newCPIndex++] = entry;
			}
		}

		if (newClasspath != null) {
			if (newCPIndex < newClasspath.length) {
				System.arraycopy(newClasspath, 0, newClasspath = new IClasspathEntry[newCPIndex], 0, newCPIndex);
			}
			IJavaModelStatus status = JavaConventions.validateClasspath(project, newClasspath, project.getOutputLocation());
			if (status.isOK())
				project.setRawClasspath(newClasspath, this.progressMonitor);
			// don't update classpath if status is not ok to avoid JavaModelException (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=129991)
		}
	}

	private IPath[] renamePatterns(IPath rootPath, IPath[] patterns) {
		IPath[] newPatterns = null;
		int newPatternsIndex = -1;
		for (int i = 0, length = patterns.length; i < length; i++) {
			IPath pattern = patterns[i];
			if (pattern.equals(rootPath)) {
				if (newPatterns == null) {
					newPatterns = new IPath[length];
					System.arraycopy(patterns, 0, newPatterns, 0, i);
					newPatternsIndex = i;
				}
				IPath newPattern = this.destination.removeFirstSegments(1);
				if (pattern.hasTrailingSeparator())
					newPattern = newPattern.addTrailingSeparator();
				newPatterns[newPatternsIndex++] = newPattern;
			}
		}
		return newPatterns;
	}

	public MovePackageFragmentRootOperation(
		IPackageFragmentRoot root,
		IPath destination,
		int updateResourceFlags,
		int updateModelFlags,
		IClasspathEntry sibling) {

		super(
			root,
			destination,
			updateResourceFlags,
			updateModelFlags,
			sibling);
	}
	@Override
	protected void executeOperation() throws JavaModelException {

		IPackageFragmentRoot root = (IPackageFragmentRoot) getElementToProcess();
		IClasspathEntry rootEntry = root.getRawClasspathEntry();
		IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot();

		// move resource
		if (!root.isExternal() && (this.updateModelFlags & IPackageFragmentRoot.NO_RESOURCE_MODIFICATION) == 0) {
			moveResource(root, rootEntry, workspaceRoot);
		}

		// update refering projects classpath excluding orignating project
		IJavaProject originatingProject = root.getJavaProject();
		if ((this.updateModelFlags & IPackageFragmentRoot.OTHER_REFERRING_PROJECTS_CLASSPATH) != 0) {
			updateReferringProjectClasspaths(rootEntry.getPath(), originatingProject);
		}

		boolean isRename = this.destination.segment(0).equals(originatingProject.getElementName());
		boolean updateOriginating = (this.updateModelFlags & IPackageFragmentRoot.ORIGINATING_PROJECT_CLASSPATH) != 0;
		boolean updateDestination = (this.updateModelFlags & IPackageFragmentRoot.DESTINATION_PROJECT_CLASSPATH) != 0;

		// update originating classpath
		if (updateOriginating) {
			if (isRename && updateDestination) {
				renameEntryInClasspath(rootEntry.getPath(), originatingProject);
			} else {
				removeEntryFromClasspath(rootEntry.getPath(), originatingProject);
			}
		}

		// update destination classpath
		if (updateDestination) {
			if (!isRename || !updateOriginating) {
				addEntryToClasspath(rootEntry, workspaceRoot);
			}  // else reference has been updated when updating originating project classpath
		}
	}
	protected void moveResource(
		IPackageFragmentRoot root,
		IClasspathEntry rootEntry,
		final IWorkspaceRoot workspaceRoot)
		throws JavaModelException {

		final char[][] exclusionPatterns = ((ClasspathEntry)rootEntry).fullExclusionPatternChars();
		IResource rootResource = ((JavaElement) root).resource();
		if (rootEntry.getEntryKind() != IClasspathEntry.CPE_SOURCE || exclusionPatterns == null) {
			try {
				IResource destRes;
				if ((this.updateModelFlags & IPackageFragmentRoot.REPLACE) != 0
						&& (destRes = workspaceRoot.findMember(this.destination)) != null) {
					destRes.delete(this.updateResourceFlags, this.progressMonitor);
				}
				rootResource.move(this.destination, this.updateResourceFlags, this.progressMonitor);
			} catch (CoreException e) {
				throw new JavaModelException(e);
			}
		} else {
			final int sourceSegmentCount = rootEntry.getPath().segmentCount();
			final IFolder destFolder = workspaceRoot.getFolder(this.destination);
			final IPath[] nestedFolders = getNestedFolders(root);
			IResourceProxyVisitor visitor = new IResourceProxyVisitor() {
				@Override
				public boolean visit(IResourceProxy proxy) throws CoreException {
					if (proxy.getType() == IResource.FOLDER) {
						IPath path = proxy.requestFullPath();
						if (prefixesOneOf(path, nestedFolders)) {
							if (equalsOneOf(path, nestedFolders)) {
								// nested source folder
								return false;
							} else {
								// folder containing nested source folder
								IFolder folder = destFolder.getFolder(path.removeFirstSegments(sourceSegmentCount));
								if ((MovePackageFragmentRootOperation.this.updateModelFlags & IPackageFragmentRoot.REPLACE) != 0
										&& folder.exists()) {
									return true;
								}
								folder.create(MovePackageFragmentRootOperation.this.updateResourceFlags, true, MovePackageFragmentRootOperation.this.progressMonitor);
								return true;
							}
						} else {
							// subtree doesn't contain any nested source folders
							IPath destPath = MovePackageFragmentRootOperation.this.destination.append(path.removeFirstSegments(sourceSegmentCount));
							IResource destRes;
							if ((MovePackageFragmentRootOperation.this.updateModelFlags & IPackageFragmentRoot.REPLACE) != 0
									&& (destRes = workspaceRoot.findMember(destPath)) != null) {
								destRes.delete(MovePackageFragmentRootOperation.this.updateResourceFlags, MovePackageFragmentRootOperation.this.progressMonitor);
							}
							proxy.requestResource().move(destPath, MovePackageFragmentRootOperation.this.updateResourceFlags, MovePackageFragmentRootOperation.this.progressMonitor);
							return false;
						}
					} else {
						IPath path = proxy.requestFullPath();
						IPath destPath = MovePackageFragmentRootOperation.this.destination.append(path.removeFirstSegments(sourceSegmentCount));
						IResource destRes;
						if ((MovePackageFragmentRootOperation.this.updateModelFlags & IPackageFragmentRoot.REPLACE) != 0
								&& (destRes = workspaceRoot.findMember(destPath)) != null) {
							destRes.delete(MovePackageFragmentRootOperation.this.updateResourceFlags, MovePackageFragmentRootOperation.this.progressMonitor);
						}
						proxy.requestResource().move(destPath, MovePackageFragmentRootOperation.this.updateResourceFlags, MovePackageFragmentRootOperation.this.progressMonitor);
						return false;
					}
				}
			};
			try {
				rootResource.accept(visitor, IResource.NONE);
			} catch (CoreException e) {
				throw new JavaModelException(e);
			}
		}
		setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
	}
	/*
	 * Renames the classpath entries equal to the given path in all Java projects.
	 */
	protected void updateReferringProjectClasspaths(IPath rootPath, IJavaProject projectOfRoot) throws JavaModelException {
		IJavaModel model = getJavaModel();
		IJavaProject[] projects = model.getJavaProjects();
		for (int i = 0, length = projects.length; i < length; i++) {
			IJavaProject project = projects[i];
			if (project.equals(projectOfRoot)) continue;
			renameEntryInClasspath(rootPath, project);
		}
	}
	/*
	 * Removes the classpath entry equal to the given path from the given project's classpath.
	 */
	protected void removeEntryFromClasspath(IPath rootPath, IJavaProject project) throws JavaModelException {

		IClasspathEntry[] classpath = project.getRawClasspath();
		IClasspathEntry[] newClasspath = null;
		int cpLength = classpath.length;
		int newCPIndex = -1;

		for (int i = 0; i < cpLength; i++) {
			IClasspathEntry entry = classpath[i];
			if (rootPath.equals(entry.getPath())) {
				if (newClasspath == null) {
					newClasspath = new IClasspathEntry[cpLength];
					System.arraycopy(classpath, 0, newClasspath, 0, i);
					newCPIndex = i;
				}
			} else if (newClasspath != null) {
				newClasspath[newCPIndex++] = entry;
			}
		}

		if (newClasspath != null) {
			if (newCPIndex < newClasspath.length) {
				System.arraycopy(newClasspath, 0, newClasspath = new IClasspathEntry[newCPIndex], 0, newCPIndex);
			}
			project.setRawClasspath(newClasspath, this.progressMonitor);
		}
	}
}
/

org.eclipse.jdt/ org.eclipse.jdt.core/ 3.20.0/ org/eclipse/jdt/internal/core/MovePackageFragmentRootOperation.java
