/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* 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 org.apache.openejb.server.cli;
import com.google.gson.GsonBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.Collection;
public class StreamManager {
private static final String OS_LINE_SEP = System.getProperty("line.separator");
private String lineSep;
private OutputStreamWriter serr;
private OutputStreamWriter sout;
private OutputStream out;
private OutputStream err;
public StreamManager(OutputStream out, OutputStream err, String lineSep) {
this.lineSep = lineSep;
this.out = out;
this.err = err;
this.sout = new OutputStreamWriter(out);
this.serr= new OutputStreamWriter(err);
}
private void write(final OutputStreamWriter writer, final String s) {
for (String l : s.split(lineSep)) {
try {
writer.write(l);
writer.write(lineSep);
writer.flush();
} catch (IOException e) {
// ignored
}
}
}
public void writeOut(final String s) {
write(sout, s);
}
public void writeErr(final Exception e) {
if (e.getStackTrace() == null) {
write(serr, e.getMessage());
} else {
final StringBuilder error = new StringBuilder();
error.append(e.getMessage()).append(lineSep);
for (StackTraceElement elt : e.getStackTrace()) {
error.append(" ").append(elt.toString()).append(lineSep);
}
write(serr, error.toString());
}
}
public String asString(final Object out) {
if (out == null) {
return "null";
}
if (out instanceof Collection) {
final StringBuilder builder = new StringBuilder();
for (Object o : (Collection) out) {
builder.append(string(o, lineSep)).append(lineSep);
}
return builder.toString();
}
return string(out, lineSep);
}
private static String string(final Object out, final String lineSep) {
if (!out.getClass().getName().startsWith("java")) {
try {
return new GsonBuilder().setPrettyPrinting().create().toJson(out)
.replace(OS_LINE_SEP, lineSep);
} catch (RuntimeException re) {
return ToStringBuilder.reflectionToString(out, ToStringStyle.SHORT_PREFIX_STYLE)
.replace(OS_LINE_SEP, lineSep);
}
}
return out.toString();
}
public OutputStream getOut() {
return out;
}
public OutputStream getErr() {
return err;
}
public OutputStreamWriter getSerr() {
return serr;
}
public OutputStreamWriter getSout() {
return sout;
}
public String getLineSep() {
return lineSep;
}
public void writeErr(final String s) {
write(serr, s);
}
}