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/*
* Copyright 2018 Huawei Technologies Co., Ltd.
*
* Licensed 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.onap.cli.fw.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import org.apache.commons.io.IOUtils;
import org.onap.cli.fw.cmd.OnapCommand;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ProcessRunner {
private static Logger log = LoggerFactory.getLogger(ProcessRunner.class);
public static final String WIN_SHELL = "cmd.exe /c ";
public static final String UNIX_SHELL = "";
private String []cmd = null;
private String shell = System.getProperty("os.name").toLowerCase().startsWith("windows") ? WIN_SHELL : UNIX_SHELL;
private String cwd = System.getProperty("user.home");
private String []env = null;
private int exitCode = -1;
private String output;
private String error;
private Map<String, Object> results;
public ProcessRunner(String []cmd, String []env, String cwd) {
this.cmd = cmd;
if (cwd != null && !cwd.isEmpty()) {
this.cwd = cwd;
}
this.env = env;
}
public void overrideToUnix() {
this.shell = UNIX_SHELL;
}
public ProcessRunner(String []cmd, String cwd) {
this(cmd, null, cwd);
}
public ProcessRunner(String []cmd) {
this(cmd, null, null);
}
public ProcessRunner(String cmd, String []env, String cwd) {
this(new String []{cmd}, env, cwd);
}
public ProcessRunner(String cmd, String cwd) {
this(new String []{cmd}, null, cwd);
}
public ProcessRunner(String cmd) {
this(new String []{cmd}, null, null);
}
@SuppressWarnings("unchecked")
public void run() throws InterruptedException, IOException {
Process p = null;
final StringWriter writerOutput = new StringWriter();
final StringWriter writerError = new StringWriter();
if (this.cmd.length == 1) {
p = Runtime.getRuntime().exec(this.shell + this.cmd[0], this.env, null);
} else {
List list = new ArrayList(Arrays.asList(this.shell.split(" ")));
list.addAll(Arrays.asList(this.cmd));
String []cmds = Arrays.copyOf(list.toArray(), list.size(), String[].class);
p = Runtime.getRuntime().exec(cmds, this.env, null);
}
final Process p1 = p;
new Thread(new Runnable() {
public void run() {
try {
IOUtils.copy(p1.getInputStream(), writerOutput);
} catch (IOException e) {
}
}
}).start();
new Thread(new Runnable() {
public void run() {
try {
IOUtils.copy(p1.getErrorStream(), writerError);
} catch (IOException e) {
}
}
}).start();
//mrkanag: handle the case if the given cmd does not exist
p.waitFor(1, TimeUnit.MINUTES);
this.exitCode = p.exitValue();
this.output = writerOutput.toString();
this.error = writerError.toString();
log.debug("CMD: " + Arrays.asList(this.cmd).toString() + "\nWORKING_DIR: " + this.cwd + "\nENV: " +
((this.env == null) ? this.env : Arrays.asList(this.env).toString()) +
"\nOUTPUT: " + this.output + "\nERROR: " + this.error + "\nEXIT_CODE: " + this.exitCode);
p.destroy();
}
public String streamToString(InputStream stream) throws IOException {
StringBuilder sb = new StringBuilder();
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(stream));
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line + System.getProperty("line.separator"));
}
} finally {
if (br != null) {
br.close();
}
}
return sb.toString();
}
public int getExitCode() {
return this.exitCode;
}
public String getOutput() {
return this.output;
}
public String getError() {
return this.error;
}
}
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