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PreserveStdStreams.java
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PreserveStdStreams.java
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/*
* #%L
* Netarchivesuite - common - test
* %%
* Copyright (C) 2005 - 2018 The Royal Danish Library,
* the National Library of France and the Austrian National Library.
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>.
* #L%
*/
package dk.netarkivet.testutils.preconfigured;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.PrintStream;
import dk.netarkivet.common.exceptions.PermissionDenied;
public class PreserveStdStreams implements TestConfigurationIF {
private InputStream origStdIn;
private PrintStream origStdOut;
private PrintStream origStdErr;
private ByteArrayOutputStream myOut;
private ByteArrayOutputStream myErr;
private boolean overwrite;
public PreserveStdStreams(boolean andOverwrite) {
overwrite = andOverwrite;
}
public PreserveStdStreams() {
this(false);
}
public void setUp() {
origStdIn = System.in;
origStdOut = System.out;
origStdErr = System.err;
if (overwrite) {
myOut = new ByteArrayOutputStream();
System.setOut(new PrintStream(myOut));
}
if (overwrite) {
myErr = new ByteArrayOutputStream();
System.setErr(new PrintStream(myErr));
}
}
public void tearDown() {
System.setIn(origStdIn);
System.setOut(origStdOut);
System.setErr(origStdErr);
}
public String getOut() {
if (overwrite) {
return myOut.toString();
}
throw new PermissionDenied("Set overwrite to true to use this facility");
}
public String getErr() {
if (overwrite) {
return myErr.toString();
}
throw new PermissionDenied("Set overwrite to true to use this facility");
}
}