org.eclipse.egf.pattern/src/org/eclipse/egf/pattern/execution/CallbackContext.java

/**
 * <copyright>
 *
 *  Copyright (c) 2009 Thales Corporate Services S.A.S.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 * 
 *  Contributors:
 *      Thales Corporate Services S.A.S - initial API and implementation
 * 
 * </copyright>
 */

package org.eclipse.egf.pattern.execution;

import java.util.Map;

import org.eclipse.egf.model.pattern.PatternContext;
import org.eclipse.egf.model.pattern.PatternExecutionReporter;

/**
 * @author Thomas Guiu
 * 
 */
public class CallbackContext extends DefaultInternalPatternContext {

    private final CallbackReporter reporter = new CallbackReporter();
    private final StringBuffer buffer = new StringBuffer(2000);

    public CallbackContext(InternalPatternContext parent) {
        super((InternalPatternContext) parent);

    }

    @Override
    public StringBuffer getBuffer() {
        return buffer;
    }

    public PatternExecutionReporter getReporter() {
        return reporter;
    }

    public boolean hasReporter() {
        return true;
    }

    public void setReporter(PatternExecutionReporter reporter) {
        throw new UnsupportedOperationException("unexpected");
    }

    public boolean useReporter() {

        return true;
    }

    private InternalPatternContext getParent() {
        return (InternalPatternContext) parent;
    }

    private class CallbackReporter implements PatternExecutionReporter {

        public void executionFinished(String output, PatternContext context) {
            throw new UnsupportedOperationException("unexpected");
        }

        public void loopFinished(String output, PatternContext context, Map<String, Object> parameterValues) {
            getParent().getReporter().loopFinished(output, context, parameterValues);
        }

    }
}