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/*
 * Copyright (c) 2008-2019 The Aspectran Project
 *
 * 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.aspectran.embed.activity;

import com.aspectran.core.activity.Activity;
import com.aspectran.core.activity.AdapterException;
import com.aspectran.core.activity.CoreActivity;
import com.aspectran.core.activity.request.ParameterMap;
import com.aspectran.core.adapter.BasicSessionAdapter;
import com.aspectran.core.util.StringOutputWriter;
import com.aspectran.embed.adapter.AspectranRequestAdapter;
import com.aspectran.embed.adapter.AspectranResponseAdapter;
import com.aspectran.embed.service.EmbeddedAspectran;

import java.io.Writer;
import java.util.Map;

/**
 * The Class AspectranActivity.
 */
public class AspectranActivity extends CoreActivity {

    private final EmbeddedAspectran aspectran;

    private Writer outputWriter;

    private ParameterMap parameterMap;

    private Map attributeMap;

    private String body;

    /**
     * Instantiates a new embedded aspectran activity.
     *
     * @param aspectran the embedded aspectran
     */
    public AspectranActivity(EmbeddedAspectran aspectran) {
        this(aspectran, null);
    }

    /**
     * Instantiates a new embedded aspectran activity.
     *
     * @param aspectran the embedded aspectran
     * @param outputWriter the output writer
     */
    public AspectranActivity(EmbeddedAspectran aspectran, Writer outputWriter) {
        super(aspectran.getActivityContext());

        this.aspectran = aspectran;
        this.outputWriter = outputWriter;
    }

    public void setParameterMap(ParameterMap parameterMap) {
        this.parameterMap = parameterMap;
    }

    public void setAttributeMap(Map attributeMap) {
        this.attributeMap = attributeMap;
    }

    public void setBody(String body) {
        this.body = body;
    }

    @Override
    protected void adapt() throws AdapterException {
        try {
            if (getOuterActivity() == null) {
                setSessionAdapter(aspectran.newSessionAdapter());
            } else {
                setSessionAdapter(getOuterActivity().getSessionAdapter());
            }

            AspectranRequestAdapter requestAdapter = new AspectranRequestAdapter(getTranslet().getRequestMethod());
            if (body != null) {
                requestAdapter.setBody(body);
            }
            setRequestAdapter(requestAdapter);

            if (outputWriter == null) {
                outputWriter = new StringOutputWriter();
            }
            AspectranResponseAdapter responseAdapter = new AspectranResponseAdapter(outputWriter);
            setResponseAdapter(responseAdapter);
        } catch (Exception e) {
            throw new AdapterException("Failed to adapt for Aspectran Activity", e);
        }

        super.adapt();
    }

    @Override
    protected void parseRequest() {
        if (getOuterActivity() == null) {
            ((AspectranRequestAdapter)getRequestAdapter()).preparse(attributeMap, parameterMap);
        } else {
            ((AspectranRequestAdapter)getRequestAdapter()).preparse(getOuterActivity().getRequestAdapter());
        }

        super.parseRequest();
    }

    @Override
    public void perform() {
        if (getOuterActivity() == null && getSessionAdapter() != null) {
            ((BasicSessionAdapter)getSessionAdapter()).getSessionAgent().access();
        }
        super.perform();
    }

    @Override
    protected void release() {
        if (getOuterActivity() == null && getSessionAdapter() != null) {
            ((BasicSessionAdapter)getSessionAdapter()).getSessionAgent().complete();
        }
        super.release();
    }

    @Override
    @SuppressWarnings("unchecked")
    public  T newActivity() {
        AspectranActivity activity = new AspectranActivity(aspectran, outputWriter);
        activity.setIncluded(true);
        return (T)activity;
    }

}