com.bancvue.mongomigrate.MongoShellExecutor.java Source code

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Here is the source code for com.bancvue.mongomigrate.MongoShellExecutor.java

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/*
 * Copyright 2013 BancVue 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 com.bancvue.mongomigrate;

import org.apache.commons.io.IOUtils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * Created with IntelliJ IDEA.
 * User: Chris.Edwards
 * Date: 8/4/13
 * Time: 8:53 PM
 */
public class MongoShellExecutor implements IMongoShellExecutor {
    private final String pathToMongoExe;
    private final String mongoConnectionString;
    private final String databaseName;

    public MongoShellExecutor(String pathToMongoExe, String mongoConnectionString, String databaseName) {
        this.pathToMongoExe = pathToMongoExe;
        this.mongoConnectionString = mongoConnectionString;
        this.databaseName = databaseName;
    }

    @Override
    public int executeJsFile(String pathToJsFile) throws IOException, InterruptedException {
        ProcessBuilder builder = new ProcessBuilder(pathToMongoExe, mongoConnectionString + "/" + databaseName,
                pathToJsFile);

        final Process process = builder.start();

        InputStream is = process.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);

        InputStream errorStream = process.getErrorStream();
        InputStreamReader errorStreamReader = new InputStreamReader(errorStream);
        BufferedReader errorStreamBufferedReader = new BufferedReader(errorStreamReader);

        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
        while ((line = errorStreamBufferedReader.readLine()) != null) {
            System.out.println("ERROR: " + line);
        }

        int exitCode = process.waitFor();
        return exitCode;
    }
}