| /* |
| * 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.pig.tools.grunt; |
| |
| import java.io.BufferedReader; |
| import java.util.ArrayList; |
| |
| import jline.console.ConsoleReader; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.impl.PigContext; |
| import org.apache.pig.tools.grunt.GruntParser; |
| import org.apache.pig.tools.grunt.PigCompletor; |
| import org.apache.pig.tools.grunt.PigCompletorAliases; |
| import org.apache.pig.tools.pigstats.PigStatsUtil; |
| import org.apache.pig.backend.executionengine.ExecException; |
| import org.apache.pig.impl.util.LogUtils; |
| |
| public class Grunt |
| { |
| private final Log log = LogFactory.getLog(getClass()); |
| |
| BufferedReader in; |
| PigServer pig; |
| GruntParser parser; |
| |
| public Grunt(BufferedReader in, PigContext pigContext) throws ExecException { |
| this.in = in; |
| this.pig = new PigServer(pigContext); |
| |
| if (in != null) { |
| parser = new GruntParser(in, pig); |
| } |
| } |
| |
| public void setConsoleReader(ConsoleReader c) |
| { |
| c.addCompleter(new PigCompletorAliases(pig)); |
| c.addCompleter(new PigCompletor()); |
| parser.setConsoleReader(c); |
| } |
| |
| public void run() { |
| boolean verbose = "true".equalsIgnoreCase(pig.getPigContext().getProperties().getProperty("verbose")); |
| while(true) { |
| try { |
| PigStatsUtil.getEmptyPigStats(); |
| parser.setInteractive(true); |
| parser.parseStopOnError(); |
| break; |
| } catch(Throwable t) { |
| LogUtils.writeLog(t, pig.getPigContext().getProperties().getProperty("pig.logfile"), |
| log, verbose, "Pig Stack Trace"); |
| parser.ReInit(in); |
| } |
| } |
| } |
| |
| public int[] exec() throws Throwable { |
| boolean verbose = "true".equalsIgnoreCase(pig.getPigContext().getProperties().getProperty("verbose")); |
| try { |
| PigStatsUtil.getEmptyPigStats(); |
| parser.setInteractive(false); |
| return parser.parseStopOnError(); |
| } catch (Throwable t) { |
| LogUtils.writeLog(t, pig.getPigContext().getProperties().getProperty("pig.logfile"), |
| log, verbose, "Pig Stack Trace"); |
| throw (t); |
| } |
| } |
| |
| public void checkScript(String scriptFile) throws Throwable { |
| boolean verbose = "true".equalsIgnoreCase(pig.getPigContext().getProperties().getProperty("verbose")); |
| try { |
| parser.setInteractive(false); |
| parser.setValidateEachStatement(true); |
| boolean dontPrintOutput = true; |
| parser.processExplain(null, scriptFile, false, "text", null, |
| new ArrayList<String>(), new ArrayList<String>(), |
| dontPrintOutput); |
| } catch (Throwable t) { |
| LogUtils.writeLog(t, pig.getPigContext().getProperties().getProperty("pig.logfile"), |
| log, verbose, "Pig Stack Trace"); |
| throw (t); |
| } |
| } |
| |
| } |