com.ibm.util.merge.web.rest.servlet.handler.GetMergeOutputHtmlResourceHandler.java Source code

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Here is the source code for com.ibm.util.merge.web.rest.servlet.handler.GetMergeOutputHtmlResourceHandler.java

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/*
 * Copyright 2015, 2015 IBM
 * 
 * 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.ibm.util.merge.web.rest.servlet.handler;

import com.ibm.util.merge.MergeException;
import com.ibm.util.merge.TemplateFactory;
import com.ibm.util.merge.web.rest.servlet.RequestData;
import com.ibm.util.merge.web.rest.servlet.RequestHandler;
import com.ibm.util.merge.web.rest.servlet.Result;
import com.ibm.util.merge.web.rest.servlet.result.HtmlErrorResult;
import com.ibm.util.merge.web.rest.servlet.result.HtmlResult;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

import java.util.HashMap;
import java.util.Properties;

/**
 * GET /idmu/merge?DragonFlyFullName=fullname&{additional requestParameters}
 */
public class GetMergeOutputHtmlResourceHandler implements RequestHandler {

    private static final Logger log = Logger.getLogger(GetMergeOutputHtmlResourceHandler.class);

    private TemplateFactory tf;
    private String errTemplate;

    @Override
    public void initialize(Properties initParameters, TemplateFactory templateFactory) {
        this.tf = templateFactory;
        errTemplate = initParameters.getProperty("idmu.errorTemplate.GetMergeOutputHtml", "defaultHtml");
    }

    @Override
    public boolean canHandle(RequestData rd) {
        return (rd.isGET()) && rd.pathStartsWith("/merge") && (rd.getPathParts().size() == 2);
    }

    @Override
    public Result handle(RequestData rd) {
        Long start = System.currentTimeMillis();
        HashMap<String, String[]> parameterMap = new HashMap<String, String[]>(rd.getParameterMap());

        // add trailing "." to create full name when needed
        String fullname = rd.getPathParts().get(1);
        if (StringUtils.countMatches(fullname, ".") < 1) {
            fullname += ".";
        }
        if (StringUtils.countMatches(fullname, ".") < 2) {
            fullname += ".";
        }
        parameterMap.put("DragonFlyFullName", new String[] { fullname });

        // Perform the merge
        try {
            String result = tf.getMergeOutput(parameterMap);
            long elapsed = System.currentTimeMillis() - start;
            log.warn(String.format("Merge completed in %d milliseconds", elapsed));
            return new HtmlResult(result);
        } catch (MergeException e) {
            return new HtmlErrorResult(e, tf, errTemplate);
        }
    }

}