nz.net.orcon.kanban.automation.plugin.TemplatePlugin.java Source code

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Here is the source code for nz.net.orcon.kanban.automation.plugin.TemplatePlugin.java

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/**
 * GRAVITY WORKFLOW AUTOMATION
 * (C) Copyright 2015 Orcon Limited
 * (C) Copyright 2016 Peter Harrison
 * 
 * This file is part of Gravity Workflow Automation.
 *
 * Gravity Workflow Automation is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * Gravity Workflow Automation is distributed in the hope that it will be 
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *    
 * You should have received a copy of the GNU General Public License
 * along with Gravity Workflow Automation.  
 * If not, see <http://www.gnu.org/licenses/>. 
 */

package nz.net.orcon.kanban.automation.plugin;

import java.util.Map;
import java.util.Map.Entry;

import org.springframework.beans.factory.annotation.Autowired;

import nz.net.orcon.kanban.controllers.ResourceController;
import nz.net.orcon.kanban.model.Action;

/**
 * This plugin is a simple text replacement plugin which replaces text in a resource
 * with Strings or Objects from the Context. It is similar to velocity and freemarker, 
 * only it actually works ;-)
 * 
 * @author peter
 *
 */
public class TemplatePlugin implements Plugin {

    @Autowired
    private ResourceController resourceController;

    @Override
    public Map<String, Object> process(Action action, Map<String, Object> context) throws Exception {

        String resource = getResourceController().getResource((String) context.get("boardid"),
                action.getResource());

        StringBuilder builder = new StringBuilder(resource);

        for (Entry<String, Object> entry : context.entrySet()) {
            if (entry.getValue() != null) {
                String valueString = entry.getValue().toString();
                replaceAll(entry.getKey(), valueString, builder);
            }
        }

        context.put(action.getResponse(), builder.toString());
        return context;
    }

    private void replaceAll(String field, String value, StringBuilder builder) {

        int x = 0;
        String toFind = "${" + field + "}";
        while (x >= 0) {
            x = builder.indexOf(toFind);
            if (x >= 0) {
                builder.replace(x, x + toFind.length(), value);
            }
        }
    }

    public ResourceController getResourceController() {
        return resourceController;
    }

    public void setResourceController(ResourceController resourceController) {
        this.resourceController = resourceController;
    }

}