org.openmrs.module.logmanager.web.view.AutocompleteView.java Source code

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Here is the source code for org.openmrs.module.logmanager.web.view.AutocompleteView.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.logmanager.web.view;

import java.io.PrintWriter;
import java.util.Collection;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.openmrs.module.logmanager.impl.LoggerProxy;
import org.springframework.web.servlet.view.AbstractView;

/**
 * View to render object in model as JSON
 */
public class AutocompleteView extends AbstractView {

    protected String sourceKey = "source";

    @SuppressWarnings("rawtypes")
    @Override
    protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        PrintWriter writer = response.getWriter();
        Object source = model.get(sourceKey);

        // Disable caching
        response.setHeader("Pragma", "No-cache");
        response.setDateHeader("Expires", 0);
        response.setHeader("Cache-Control", "no-cache");
        response.setContentType("application/json");

        writer.write("[");

        if (source != null) {
            if (source instanceof Collection) {
                Collection<?> collection = (Collection<?>) source;
                Object[] items = collection.toArray();
                for (int i = 0; i < items.length; i++) {
                    Object item = items[i];
                    String label = (item instanceof LoggerProxy) ? ((LoggerProxy) item).getName() : item.toString();

                    if (i > 0)
                        writer.write(',');

                    writer.write("{\"label\":\"" + label + "\", \"value\":\"" + label + "\"}");
                }
            }
        } else
            writer.write("\"ERROR: Source object is null\"");

        writer.write("]");
    }

    /**
     * @return the sourceKey
     */
    public String getSourceKey() {
        return sourceKey;
    }

    /**
     * @param sourceKey the sourceKey to set
     */
    public void setSourceKey(String sourceKey) {
        this.sourceKey = sourceKey;
    }
}