/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.pde.internal.core.util;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.xml.parsers.FactoryConfigurationError;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.osgi.service.resolver.BundleDescription;
import org.eclipse.pde.core.plugin.IPluginLibrary;
import org.eclipse.pde.core.plugin.IPluginModelBase;
import org.eclipse.pde.core.plugin.PluginRegistry;
import org.eclipse.pde.internal.core.PDECore;
public class CoreUtility {
/**
* Read a file from an InputStream and write it to the file system.
*
* @param in InputStream from which to read.
* @param file output file to create.
* @exception IOException
*/
public static void readFile(InputStream in, File file) throws IOException {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file);
byte buffer[] = new byte[1024];
int count;
while ((count = in.read(buffer, 0, buffer.length)) > 0) {
fos.write(buffer, 0, count);
}
fos.close();
fos = null;
in.close();
in = null;
} catch (IOException e) {
// close open streams
if (fos != null) {
try {
fos.close();
} catch (IOException ee) {
}
}
if (in != null) {
try {
in.close();
} catch (IOException ee) {
}
}
throw e;
}
}
public static void addNatureToProject(IProject proj, String natureId,
IProgressMonitor monitor) throws CoreException {
IProjectDescription description = proj.getDescription();
String[] prevNatures = description.getNatureIds();
String[] newNatures = new String[prevNatures.length + 1];
System.arraycopy(prevNatures, 0, newNatures, 0, prevNatures.length);
newNatures[prevNatures.length] = natureId;
description.setNatureIds(newNatures);
proj.setDescription(description, monitor);
}
public static void createFolder(IFolder folder) throws CoreException {
if (!folder.exists()) {
IContainer parent = folder.getParent();
if (parent instanceof IFolder) {
createFolder((IFolder) parent);
}
folder.create(true, true, null);
}
}
public static void createProject(IProject project, IPath location,
IProgressMonitor monitor) throws CoreException {
if (!Platform.getLocation().equals(location)) {
IProjectDescription desc = project.getWorkspace()
.newProjectDescription(project.getName());
desc.setLocation(location);
project.create(desc, monitor);
} else
project.create(monitor);
}
public static String normalize(String text) {
if (text == null || text.trim().length() == 0)
return ""; //$NON-NLS-1$
text = text.replaceAll("\\r|\\n|\\f|\\t", " "); //$NON-NLS-1$ //$NON-NLS-2$
return text.replaceAll("\\s+", " "); //$NON-NLS-1$ //$NON-NLS-2$
}
public static void deleteContent(File curr) {
if (curr.exists()) {
if (curr.isDirectory()) {
File[] children = curr.listFiles();
if (children != null) {
for (int i = 0; i < children.length; i++) {
deleteContent(children[i]);
}
}
}
curr.delete();
}
}
public static boolean guessUnpack(BundleDescription bundle) {
if (bundle == null)
return true;
if (new File(bundle.getLocation()).isFile())
return false;
IWorkspaceRoot root = PDECore.getWorkspace().getRoot();
IContainer container = root.getContainerForLocation(new Path(bundle.getLocation()));
if (container == null)
return true;
if (container instanceof IProject) {
try {
if (!((IProject)container).hasNature(JavaCore.NATURE_ID))
return true;
} catch (CoreException e) {
}
}
IPluginModelBase model = PluginRegistry.findModel(bundle);
if (model == null)
return true;
IPluginLibrary[] libraries = model.getPluginBase().getLibraries();
if (libraries.length == 0)
return false;
for (int i = 0; i < libraries.length; i++) {
if (libraries[i].getName().equals(".")) //$NON-NLS-1$
return false;
}
return true;
}
public static boolean jarContainsResource(File file, String resource, boolean directory) {
ZipFile jarFile = null;
try {
jarFile = new ZipFile(file, ZipFile.OPEN_READ);
ZipEntry resourceEntry = jarFile.getEntry(resource);
if (resourceEntry != null)
return directory ? resourceEntry.isDirectory() : true;
} catch (IOException e) {
} catch (FactoryConfigurationError e) {
} finally {
try {
if (jarFile != null)
jarFile.close();
} catch (IOException e2) {
}
}
return false;
}
public static void copyFile(IPath originPath, String name, File target) {
File source = new File(originPath.toFile(), name);
if (source.exists() == false)
return;
FileInputStream is = null;
FileOutputStream os = null;
try {
is = new FileInputStream(source);
os = new FileOutputStream(target);
byte[] buf = new byte[1024];
long currentLen = 0;
int len = is.read(buf);
while (len != -1) {
currentLen += len;
os.write(buf, 0, len);
len = is.read(buf);
}
} catch (IOException e) {
} finally {
try {
if (is != null)
is.close();
if (os != null)
os.close();
} catch (IOException e) {
}
}
}
public static org.eclipse.jface.text.Document getTextDocument(File bundleLocation, String path) {
ZipFile jarFile = null;
InputStream stream = null;
try {
String extension = new Path(bundleLocation.getName()).getFileExtension();
if ("jar".equals(extension) && bundleLocation.isFile()) { //$NON-NLS-1$
jarFile = new ZipFile(bundleLocation, ZipFile.OPEN_READ);
ZipEntry manifestEntry = jarFile.getEntry(path);
if (manifestEntry != null) {
stream = jarFile.getInputStream(manifestEntry);
}
} else {
File file = new File(bundleLocation, path);
if (file.exists())
stream = new FileInputStream(file);
}
return getTextDocument(stream);
} catch (IOException e) {
} finally {
try {
if (jarFile != null)
jarFile.close();
} catch (IOException e) {
}
}
return null;
}
public static org.eclipse.jface.text.Document getTextDocument(InputStream in) {
ByteArrayOutputStream output = null;
String result = null;
try {
output = new ByteArrayOutputStream();
byte buffer[] = new byte[1024];
int count;
while ((count = in.read(buffer, 0, buffer.length)) > 0) {
output.write(buffer, 0, count);
}
result = output.toString("UTF-8"); //$NON-NLS-1$
output.close();
output = null;
in.close();
in = null;
} catch (IOException e) {
// close open streams
if (output != null) {
try {
output.close();
} catch (IOException ee) {
}
}
if (in != null) {
try {
in.close();
} catch (IOException ee) {
}
}
}
return result == null ? null : new org.eclipse.jface.text.Document(result);
}
}
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