edu.tufts.eaftan.hprofparser.Parse.java Source code

Introduction

Here is the source code for edu.tufts.eaftan.hprofparser.Parse.java

Source

/*
 * Copyright 2014 Edward Aftandilian. All Rights Reserved.
 *
 * 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.
 */

/*
 * Copyright 2014 Edward Aftandilian. All Rights Reserved.
 *
 * 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 edu.tufts.eaftan.hprofparser;

import com.google.common.collect.Lists;

import edu.tufts.eaftan.hprofparser.handler.examples.PrintHandler;

import edu.tufts.eaftan.hprofparser.handler.RecordHandler;
import edu.tufts.eaftan.hprofparser.parser.HprofParser;

import java.io.File;
import java.io.IOException;
import java.util.List;

public class Parse {

    private static final Class<? extends RecordHandler> DEFAULT_HANDLER = PrintHandler.class;

    public static void main(String[] args) {

        List<String> argList = Lists.newArrayList(args);

        if (argList.size() < 1) {
            System.out.println("Usage: java Parse [--handler=<handler class>] inputfile");
            System.exit(1);
        }

        Class<? extends RecordHandler> handlerClass = DEFAULT_HANDLER;
        for (String arg : argList) {
            if (arg.startsWith("--handler=")) {
                String handlerClassName = arg.substring("--handler=".length());
                try {
                    handlerClass = (Class<? extends RecordHandler>) Class.forName(handlerClassName);
                } catch (ClassNotFoundException e) {
                    System.err.println("Could not find class " + handlerClassName);
                    System.exit(1);
                }
            }
        }

        RecordHandler handler = null;
        try {
            handler = handlerClass.newInstance();
        } catch (InstantiationException | IllegalAccessException e) {
            System.err.println("Could not instantiate " + handlerClass);
            System.exit(1);
        }
        HprofParser parser = new HprofParser(handler);

        try {
            parser.parse(new File(argList.get(argList.size() - 1)));
        } catch (IOException e) {
            System.err.println(e);
        }

    }

}