/src/main/java/org/andya/confluence/plugins/metadata/MetadataFromMacro.java

/*

 * Copyright (c) 2006, 2007 Andy Armstrong, Kelsey Grant and other contributors.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 *     * Redistributions of source code must retain the above copyright notice,

 *       this list of conditions and the following disclaimer.

 *     * Redistributions in binary form must reproduce the above copyright notice,

 *       this list of conditions and the following disclaimer in the documentation

 *       and/or other materials provided with the distribution.

 *     * The names of contributors may not

 *       be used to endorse or promote products derived from this software without

 *       specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR

 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */



package org.andya.confluence.plugins.metadata;



import com.atlassian.confluence.pages.Page;

import com.atlassian.renderer.RenderContext;

import com.atlassian.renderer.v2.macro.MacroException;



import java.util.Map;



import org.andya.confluence.utils.MacroUtils;

import org.andya.confluence.plugins.metadata.model.MetadataValue;



/**

 * Macro allowing metadata from a different page to be shown on the current page.

 */

public class MetadataFromMacro extends MetadataUsingMacro {

	public MetadataFromMacro() {

		super("metadata-from");

	}



	@SuppressWarnings("unchecked")

	public String execute(Map parameters, String qualifiedName, RenderContext renderContext) throws MacroException {

		try {

			String pageName = MacroUtils.getStringParameter(parameters, "0", null);

			String valueName = MacroUtils.getStringParameter(parameters, "1", null);



			if (pageName == null && valueName == null) {

				throw new MacroException("Must specify the page and the metadata to fetch");

			}



			if (valueName == null) {

				//shift along..

				valueName = pageName;

				pageName = SELF_KEY;

			}



			if ("".equals(pageName)) {

				pageName = SELF_KEY;

			}

			final Page page = getPage(renderContext, pageName);

			final MetadataValue value = getMetadataValue(page, valueName);

			String res = value != null ? renderValue(renderContext, page, value) : "";

			return res;

		} catch (Exception e) {

			return showRenderedExceptionString(parameters, e);

		}

	}

	

	@Override

	public boolean isInline() {

		return true;

	}



}