com.continuuity.weave.api.AbstractWeaveRunnable.java Source code

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Here is the source code for com.continuuity.weave.api.AbstractWeaveRunnable.java

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/*
 * Copyright 2012-2013 Continuuity,Inc. 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 com.continuuity.weave.api;

import com.google.common.collect.ImmutableMap;

import java.util.Map;

/**
 * This abstract class provides default implementation of the {@link WeaveRunnable}.
 */
public abstract class AbstractWeaveRunnable implements WeaveRunnable {

    private Map<String, String> args;

    protected AbstractWeaveRunnable() {
        this.args = ImmutableMap.of();
    }

    protected AbstractWeaveRunnable(Map<String, String> args) {
        this.args = ImmutableMap.copyOf(args);
    }

    @Override
    public WeaveRunnableSpecification configure() {
        return WeaveRunnableSpecification.Builder.with().setName(getClass().getSimpleName()).withConfigs(args)
                .build();
    }

    @Override
    public void initialize(WeaveContext context) {
        this.args = context.getSpecification().getConfigs();
    }

    @Override
    public void handleCommand(Command command) throws Exception {
        // No-op by default. Left for children class to override.
    }

    protected Map<String, String> getArguments() {
        return args;
    }

    protected String getArgument(String key) {
        return args.get(key);
    }
}