/*
* 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.command;
import org.apache.openejb.loader.IO;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
@Command(name = "cat", usage = "cat <path>", description = "cat a file (in tomee directories only)")
public class CatCommand extends PathCommand {
@Override
public void execute(final String cmd) {
final File file;
try {
file = resolve(cmd);
} catch (IllegalArgumentException iae) {
streamManager.writeErr(iae.getMessage());
return;
}
if (file.isDirectory() && file.exists()) {
streamManager.writeOut("file " + file.getPath() + " is a directory, please specify a regular file");
} else if (file.exists()) {
try {
cat(file);
} catch (IOException e) {
streamManager.writeErr(e);
}
} else {
streamManager.writeOut("file " + file.getPath() + " doesn't exist");
}
}
private void cat(final File file) throws IOException {
final BufferedReader br = new BufferedReader(new FileReader(file));
String line;
int lineNumber = 0;
try {
while ((line = br.readLine()) != null) {
lineNumber++;
streamManager.writeOut(String.format("%3d. %s", lineNumber, line));
}
} finally {
IO.close(br);
}
}
}