com.ibm.sbt.services.client.base.transformers.AbstractBaseTransformer.java Source code

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Here is the source code for com.ibm.sbt.services.client.base.transformers.AbstractBaseTransformer.java

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/*
 *  Copyright IBM Corp. 2013
 * 
 * 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.sbt.services.client.base.transformers;

import java.io.InputStream;
import java.util.Map;

import org.apache.commons.io.IOUtils;

/**
 * AbstractBaseTransformer provides helper methods for reading and updating template files
 * <p>
 * @author Manish Kataria
 */

public abstract class AbstractBaseTransformer {

    public abstract String transform(Map<String, Object> fieldmap) throws TransformerException;

    protected String getTemplateContent(String templatepath) throws TransformerException {
        try {
            InputStream fisTargetFile = AbstractBaseTransformer.class.getResourceAsStream(templatepath);
            String targetFileStr = IOUtils.toString(fisTargetFile);
            return targetFileStr;
        } catch (Exception e) {
            throw new TransformerException(e);
        }
    }

    protected String getXMLRep(InputStream templatefile, String placeholder, String value)
            throws TransformerException {
        try {
            String targetFileStr = IOUtils.toString(templatefile);
            return getXMLRep(targetFileStr, placeholder, value);
        } catch (Exception e) {
            throw new TransformerException(e);
        }
    }

    protected String getXMLRep(String xml, String placeholder, String value) {
        placeholder = "${" + placeholder + "}";
        xml = xml.replace(placeholder, value);
        return xml;
    }

    protected String removeExtraPlaceholders(String xmlbody) {
        while (xmlbody.contains("${")) {
            int startIndex = xmlbody.indexOf("${");
            int endIndex = xmlbody.indexOf("}", startIndex);
            String tempStart = xmlbody.substring(0, startIndex);
            String tempEnd = xmlbody.substring(endIndex + 1, xmlbody.length());
            xmlbody = tempStart + tempEnd;
        }
        return xmlbody;
    }

    protected InputStream getStream(String templatepath) {
        InputStream fisTargetFile = AbstractBaseTransformer.class.getResourceAsStream(templatepath);
        return fisTargetFile;
    }

}