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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/org/documents/epl-v10.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.adt;
import org.eclipse.core.resources.IProject;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Calendar;
/**
* Custom PrintStream allowing to precede the message with a tag containing data/project info.
*
* Additionally, a prefix can be set (and removed) at runtime.
*
* Only {@link #println()} is supported.
*/
public class AndroidPrintStream extends PrintStream {
private IProject mProject;
private String mPrefix;
/**
* Default constructor with project and output stream.
* The project is used to get the project name for the output tag.
*
* @param project The Project
* @param prefix A prefix to be printed before the actual message. Can be null
* @param stream The Stream
*/
public AndroidPrintStream(IProject project, String prefix, OutputStream stream) {
super(stream);
mProject = project;
}
/**
* Updates the value of the prefix.
* @param prefix
*/
public void setPrefix(String prefix) {
mPrefix = prefix;
}
@Override
public void println(String message) {
// write the date/project tag first.
String tag = getMessageTag(mProject != null ? mProject.getName() : null);
print(tag);
print(" "); //$NON-NLS-1$
if (mPrefix != null) {
print(mPrefix);
print(" "); //$NON-NLS-1$
}
// then write the regular message
super.println(message);
}
/**
* Creates a string containing the current date/time, and the tag.
* The tag does not end with a whitespace.
* @param tag The tag associated to the message. Can be null
* @return The dateTag
*/
public static String getMessageTag(String tag) {
Calendar c = Calendar.getInstance();
if (tag == null) {
return String.format(Messages.Console_Date_Tag, c);
}
return String.format(Messages.Console_Data_Project_Tag, c, tag);
}
}
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