com.sos.scheduler.engine.kernel.command.DispatchingResultXmlizer.java Source code

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Here is the source code for com.sos.scheduler.engine.kernel.command.DispatchingResultXmlizer.java

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/**
 * Copyright (C) 2014 BigLoupe http://bigloupe.github.io/SoS-JobScheduler/
 *
 * 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
 */
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package com.sos.scheduler.engine.kernel.command;

import com.google.common.collect.ImmutableMap;
import com.sos.scheduler.engine.kernel.scheduler.SchedulerException;
import org.w3c.dom.Element;

class DispatchingResultXmlizer implements ResultXmlizer {
    private final ImmutableMap<Class<?>, ResultXmlizer> resultXmlizers;

    DispatchingResultXmlizer(Iterable<ResultXmlizer> xmlizers) {
        resultXmlizers = mapOfXmlizers(xmlizers);
    }

    private static ImmutableMap<Class<?>, ResultXmlizer> mapOfXmlizers(Iterable<ResultXmlizer> rx) {
        ImmutableMap.Builder<Class<?>, ResultXmlizer> b = new ImmutableMap.Builder<Class<?>, ResultXmlizer>();
        for (ResultXmlizer r : rx)
            b.put(r.getResultClass(), r);
        return b.build();
    }

    @Override
    public final Class<? extends Result> getResultClass() {
        return Result.class; // Dummy
    }

    @Override
    public final Element toElement(Result r) {
        return resultXmlizer(r.getClass()).toElement(r);
    }

    private ResultXmlizer resultXmlizer(Class<?> clas) {
        ResultXmlizer result = resultXmlizers.get(clas);
        if (result == null)
            throw new SchedulerException("No " + ResultXmlizer.class.getName() + " for " + clas.getName());
        return result;
    }
}