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/*******************************************************************************
* Copyright (c) 2009 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.equinox.p2.internal.repository.mirroring;
import java.io.*;
import java.util.Date;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.equinox.internal.p2.artifact.repository.Messages;
import org.eclipse.equinox.p2.repository.artifact.IArtifactDescriptor;
public class FileMirrorLog implements IArtifactMirrorLog {
private static final String INDENT = "\t"; //$NON-NLS-1$
private static final String SEPARATOR = System.getProperty("line.separator"); //$NON-NLS-1$
private BufferedWriter out;
private boolean consoleMessage = false;
private int minSeverity = IStatus.OK;
private boolean hasRoot = false;
public FileMirrorLog(String location, int minSeverity, String root) {
this.minSeverity = minSeverity;
try {
File log = new File(location);
if (log.getParentFile().exists() || log.getParentFile().mkdirs()) {
out = new BufferedWriter(new FileWriter(log, true));
if (root != null) {
log(root + " - " + new Date()); //$NON-NLS-1$
hasRoot = true;
}
} else
throw new IOException(Messages.exception_unableToCreateParentDir);
} catch (IOException e) {
exceptionOccurred(null, e);
}
}
/*
* (non-Javadoc)
* @see org.eclipse.equinox.internal.p2.artifact.mirror.IArtifactMirrorLog#log(org.eclipse.equinox.internal.provisional.p2.artifact.repository.IArtifactDescriptor, org.eclipse.core.runtime.IStatus)
*/
public void log(IArtifactDescriptor descriptor, IStatus status) {
if (status.getSeverity() >= minSeverity) {
log(descriptor.toString());
log(status, INDENT);
}
}
/*
* (non-Javadoc)
* @see org.eclipse.equinox.internal.p2.artifact.mirror.IArtifactMirrorLog#log(org.eclipse.core.runtime.IStatus)
*/
public void log(IStatus status) {
log(status, ""); //$NON-NLS-1$
}
/*
* Write a status to the log, indenting it based on status depth.
* @param status the status to log
* @param depth the depth of the status
*/
private void log(IStatus status, String prefix) {
if (status.getSeverity() >= minSeverity) {
// Write status to log
log(prefix + status.getMessage());
// Write exception to log if applicable
String exceptionMessage = status.getException() != null ? status.getException().getMessage() : null;
if (exceptionMessage != null)
log(prefix + exceptionMessage);
// Write the children of the status to the log
IStatus[] nestedStatus = status.getChildren();
if (nestedStatus != null)
for (int i = 0; i < nestedStatus.length; i++)
log(nestedStatus[i], prefix + INDENT);
}
}
/*
* Write a message to the log
* @param message the message to write
*/
private void log(String message) {
try {
out.write((hasRoot ? INDENT : "") + message + SEPARATOR); //$NON-NLS-1$
} catch (IOException e) {
exceptionOccurred((hasRoot ? INDENT : "") + message, e); //$NON-NLS-1$
}
}
/*
* (non-Javadoc)
* @see org.eclipse.equinox.internal.p2.artifact.mirror.IArtifactMirrorLog#close()
*/
public void close() {
try {
if (out != null)
out.close();
} catch (IOException e) {
exceptionOccurred(null, e);
}
}
/*
* Show an error message if this the first time, and print status messages.
*/
private void exceptionOccurred(String message, Exception e) {
if (!consoleMessage) {
System.err.println(Messages.MirrorLog_Exception_Occurred);
e.printStackTrace(System.err);
System.err.println(Messages.MirrorLog_Console_Log);
consoleMessage = true;
}
if (message != null)
System.out.println(message);
}
}
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