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/*
 *  GeoServer-Manager - Simple Manager Library for GeoServer
 *  
 *  Copyright (C) 2007,2011 GeoSolutions S.A.S.
 *  http://www.geo-solutions.it
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package it.geosolutions.geoserver.rest.encoder;

import it.geosolutions.geoserver.rest.encoder.coverage.GSCoverageEncoder;
import it.geosolutions.geoserver.rest.encoder.feature.GSFeatureTypeEncoder;
import it.geosolutions.geoserver.rest.encoder.metadata.GSDimensionInfoEncoder;
import it.geosolutions.geoserver.rest.encoder.metadata.GSFeatureDimensionInfoEncoder;
import it.geosolutions.geoserver.rest.encoder.metadatalink.GSMetadataLinkInfoEncoder;
import it.geosolutions.geoserver.rest.encoder.utils.ElementUtils;
import it.geosolutions.geoserver.rest.encoder.utils.NestedElementEncoder;
import it.geosolutions.geoserver.rest.encoder.utils.PropertyXMLEncoder;
import it.geosolutions.geoserver.rest.encoder.utils.XmlElement;

import org.jdom.Element;
import org.jdom.filter.Filter;

/**
 * 
 * Encode a GeoServer resource.
 * 
 * @see GSDimensionInfoEncoder
 * @see GSFeatureDimensionInfoEncoder
 * 
 * @author ETj (etj at geo-solutions.it)
 * @author Carlo Cancellieri - [email protected]
 * @author Emmanuel Blondel - [email protected] |
 *         [email protected]
 * @author Henry Rotzoll
 */
public abstract class GSResourceEncoder extends PropertyXMLEncoder {
	public final static String NAME = "name";

	public final static String NATIVENAME = "nativeName";

	public final static String METADATA = "metadata";

	public final static String KEYWORDS = "keywords";

	public final static String METADATALINKS = "metadataLinks";

	final private GSMetadataEncoder metadata = new GSMetadataEncoder();

	final private Element keywordsListEncoder = new Element(KEYWORDS);

	final private Element metadataLinksListEncoder = new Element(METADATALINKS);

	private class GSMetadataEncoder extends NestedElementEncoder {
		public GSMetadataEncoder() {
			super(METADATA);
		}
	}

	/**
	 * @param rootName
	 *          Actually 'feature' or 'coverage'
	 * @see GSFeatureTypeEncoder
	 * @see GSCoverageEncoder
	 */
	protected GSResourceEncoder(final String rootName) {
		super(rootName);
		add("enabled", "true");

		// Link members to the parent
		addContent(metadata.getRoot());
		addContent(keywordsListEncoder);
		addContent(metadataLinksListEncoder);
		//addContent(parameters.getRoot());
	}

	public void setEnabled(boolean enabled) {
		set("enabled", (enabled) ? "true" : "false");
	}

	/**
	 * @param key
	 * @param dimensionInfo
	 */
	protected void addMetadata(String key, XmlElement dimensionInfo) {
		metadata.add(key, dimensionInfo.getRoot());
	}

	/**
	 * @deprecated Use
	 *             {@link #setMetadataDimension(String, GSDimensionInfoEncoder)}
	 *             this method will be set as protected for internal use only
	 * @param key
	 * @param dimensionInfo
	 */
	public void setMetadata(String key, XmlElement dimensionInfo) {
		metadata.set(key, dimensionInfo.getRoot());
	}

	/**
	 * @param key
	 * @param dimensionInfo
	 */
	protected void addMetadataDimension(String key, GSDimensionInfoEncoder dimensionInfo) {
		addMetadataDimension(key, dimensionInfo, false);
	}

	/**
	 * Add the metadata for a custom dimension.
	 * 
	 * @param key
	 *          the name of the dimension
	 * @param dimensionInfo
	 *          {@link GSDimensionInfoEncoder} with additional information about
	 *          the dimension
	 * @param custom
	 *          is the dimension custom or not?
	 */
	protected void addMetadataDimension(String key, GSDimensionInfoEncoder dimensionInfo, boolean custom) {
		if (custom) {
			metadata.set("custom_dimension_" + key.toUpperCase(), dimensionInfo.getRoot());
		} else {
			metadata.add(key, dimensionInfo.getRoot());
		}
	}

	public void setMetadataDimension(String key, GSDimensionInfoEncoder dimensionInfo) {
		setMetadataDimension(key, dimensionInfo, false);
	}

	public void setMetadataString(String key, String value) {
		metadata.set(key, value);
	}

	/**
	 * Set the metadata for a custom dimension.
	 * 
	 * @param key
	 *          the name of the dimension
	 * @param dimensionInfo
	 *          {@link GSDimensionInfoEncoder} with additional information about
	 *          the dimension
	 * @param custom
	 *          is the dimension custom or not?
	 */
	public void setMetadataDimension(String key, GSDimensionInfoEncoder dimensionInfo, boolean custom) {
		if (custom) {
			metadata.set("custom_dimension_" + key.toUpperCase(), dimensionInfo.getRoot());
		} else {
			metadata.set(key, dimensionInfo.getRoot());
		}
	}

	/**
	 * @param key
	 *          the name of the metadata to add (f.e.: elevation, time)
	 * @return true if something is removed, false otherwise
	 */
	public boolean delMetadata(String key) {
		return metadata.remove(key);
	}

	public void addKeyword(String keyword) {
		checkKeyword(keyword);
		putKeyword(keyword);
	}

	/**
	 * {@code
	 * 
	 *          WCS
	 *          ImageMosaic
	 *          srtm30  KEYWORD}
	 * \@language={LANGUAGE}\;\@vocabulary={VOCABULARY}\;
	 * {KEYWORD_2}\@vocabulary={VOCABULARY_2}\;
	 * {KEYWORD_3}\@language={LANGUAGE_3}\;  }
	 * 
	 * @param keyword
	 *          mandatory keyword ('\' characters are not permitted)
	 * @param language
	 *          optional parameter
	 * @param vocabulary
	 *          optional parameter
	 */
	public void addKeyword(final String keyword, final String language, final String vocabulary) {
		checkKeyword(keyword);
		putKeyword(buildKeyword(keyword, language, vocabulary));
	}

	/**
	 * delete a keyword from the list
	 * 
	 * @param keyword
	 * @return true if something is removed, false otherwise
	 */
	public boolean delKeyword(final String keyword) {
		return removeKeyword(keyword, null, null);
	}

	/**
	 * delete a keyword from the list
	 * 
	 * @param keyword
	 * @return true if something is removed, false otherwise
	 */
	public boolean delKeyword(final String keyword, final String language, final String vocabulary) {
		return removeKeyword(keyword, language, vocabulary);
	}

	private boolean removeKeyword(final String keyword, final String language, final String vocabulary) {
		checkKeyword(keyword);
		final String text = buildKeyword(keyword, language, vocabulary);
		return (keywordsListEncoder.removeContent(new Filter() {
			private static final long serialVersionUID = 1L;

			public boolean matches(Object obj) {
				if (((Element) obj).getText().equals(text)) {
					return true;
				}
				return false;
			}
		})).size() == 0 ? false : true;
	}

	private void putKeyword(String keyword) {
		final Element el = new Element("string");
		el.setText(keyword);
		keywordsListEncoder.addContent(el);
	}

	private void checkKeyword(String keyword) {
		if (keyword == null || keyword.isEmpty() || keyword.contains("\\")) {
			throw new IllegalArgumentException("keyword may not be null, empty or contains '\'");
		}
	}

	private String buildKeyword(final String keyword, final String language, final String vocabulary) {
		StringBuilder sb = new StringBuilder(keyword);
		// \@language={LANGUAGE_3}\;
		if (language != null && !language.isEmpty()) {
			sb.append("\\@language=").append(language).append("\\;");
		}
		// \@vocabulary={VOCABULARY}\;
		if (vocabulary != null && !vocabulary.isEmpty()) {
			sb.append("\\@vocabulary=").append(vocabulary).append("\\;");
		}
		return sb.toString();
	}

	/**
	 * Adds a MetadataLinkInfo to the GeoServer Resource
	 * 
	 * @param MetadataLink
	 * 
	 */
	public void addMetadataLinkInfo(GSMetadataLinkInfoEncoder metadataLinkInfo) {
		metadataLinksListEncoder.addContent(metadataLinkInfo.getRoot());
	}

	/**
	 * Adds quickly a MetadataLinkInfo to the GeoServer Resource
	 * 
	 * 
	 * @param type
	 * @param metadataType
	 * @param content
	 */
	public void addMetadataLinkInfo(String type, String metadataType, String content) {
		final GSMetadataLinkInfoEncoder mde = new GSMetadataLinkInfoEncoder(type, metadataType, content);
		metadataLinksListEncoder.addContent(mde.getRoot());
	}

	/**
	 * Deletes a metadataLinkInfo from the list using the metadataURL
	 * (MetadataLinkInfo content)
	 * 
	 * @param metadataURL
	 * @return true if something is removed, false otherwise
	 */
	public boolean delMetadataLinkInfo(final String metadataURL) {
		return (metadataLinksListEncoder.removeContent(GSMetadataLinkInfoEncoder.getFilterByContent(metadataURL))).size() == 0 ? false : true;
	}

	/**
	 * Reprojection policy for a published layer. One of:
	 * 
    *
  • {@link #REPROJECT_TO_DECLARED} Reproject from native to declared CRS *
  • {@link #FORCE_DECLARED} Use the declared CRS (ignore native) *
  • {@link #NONE} No reprojection (use native CRS) *
*/ public enum ProjectionPolicy { /** Reproject from native to declared CRS */ REPROJECT_TO_DECLARED, /** Use the declared CRS (ignore native) */ FORCE_DECLARED, /** Keep native */ NONE } private final static String PROJECTIONPOLICY = "projectionPolicy"; /** * NONE, REPROJECT_TO_DECLARED, FORCE_DECLARED * */ protected void addProjectionPolicy(ProjectionPolicy policy) { add(PROJECTIONPOLICY, policy.toString()); } /** * NONE, REPROJECT_TO_DECLARED, FORCE_DECLARED */ public void setProjectionPolicy(ProjectionPolicy policy) { set(PROJECTIONPOLICY, policy.toString()); } /** * Add the 'name' node with a text value from 'name' * * @note REQUIRED to configure a resource */ protected void addName(final String name) { add(NAME, name); } /** * Set or modify the 'name' node with a text value from 'name' * * @note REQUIRED to configure a resource */ public void setName(final String name) { set(NAME, name); } public String getName() { final Element nameNode = ElementUtils.contains(getRoot(), NAME, 1); if (nameNode != null) return nameNode.getText(); else return null; } /** * Add the 'nativename' node with a text value from 'name' * * */ protected void addNativeName(final String nativename) { add(NATIVENAME, nativename); } /** * Set or modify the 'nativename' node with a text value from 'name' * * @note if not specified, the nativeName will be set with the value of the * 'name' node. * */ public void setNativeName(final String nativename) { set(NATIVENAME, nativename); } /** * Get the nativeName * * @return */ public String getNativeName() { final Element nameNode = ElementUtils.contains(getRoot(), NATIVENAME, 1); if (nameNode != null) return nameNode.getText(); else return null; } private final static String DESCRIPTION = "description"; /** * Add the 'description' node with a text value from 'description' * */ protected void addDescription(final String description) { add(DESCRIPTION, description); } /** * Set or modify the 'description' node with a text value from 'description' */ public void setDescription(final String description) { set(DESCRIPTION, description); } private final static String ABSTRACT = "abstract"; /** * Add the 'abstract' node with a text value from 'abstract' * */ protected void addAbstract(final String _abstract) { add(ABSTRACT, _abstract); } /** * Set or modify the 'abstract' node with a text value from 'abstract' */ public void setAbstract(final String _abstract) { set(ABSTRACT, _abstract); } private final static String TITLE = "title"; /** * Add the 'title' node with a text value from 'title' * */ protected void addTitle(final String title) { add(TITLE, title); } /** * Set or modify the 'title' node with a text value from 'title' */ public void setTitle(final String title) { set(TITLE, title); } private final static String SRS = "srs"; /** * Add the 'SRS' node with a text value from 'srs' */ protected void addSRS(final String srs) { add(SRS, srs); } /** * Set or modify the 'SRS' node with a text value from 'srs' */ public void setSRS(final String srs) { set(SRS, srs); } private final static String NATIVECRS = "nativeCRS"; /** * Add the 'nativeCRS' node with a text value from 'nativeCRS' */ protected void addNativeCRS(final String nativeCRS) { add(NATIVECRS, nativeCRS); } /** * Set or modify the 'nativeCRS' node with a text value from 'nativeCRS' */ public void setNativeCRS(final String nativeCRS) { set(NATIVECRS, nativeCRS); } private final static String LATLONBBMINX = "latLonBoundingBox/minx"; private final static String LATLONBBMAXX = "latLonBoundingBox/maxx"; private final static String LATLONBBMINY = "latLonBoundingBox/miny"; private final static String LATLONBBMAXY = "latLonBoundingBox/maxy"; private final static String LATLONBBCRS = "latLonBoundingBox/crs"; /** * * @param minx * @param maxy * @param maxx * @param miny * @param crs */ protected void addLatLonBoundingBox(double minx, double miny, double maxx, double maxy, final String crs) { add(LATLONBBMINX, String.valueOf(minx)); add(LATLONBBMINY, String.valueOf(miny)); add(LATLONBBMAXY, String.valueOf(maxy)); add(LATLONBBMAXX, String.valueOf(maxx)); add(LATLONBBCRS, crs); } public void setLatLonBoundingBox(double minx, double miny, double maxx, double maxy, final String crs) { set(LATLONBBMINX, String.valueOf(minx)); set(LATLONBBMAXY, String.valueOf(maxy)); set(LATLONBBMAXX, String.valueOf(maxx)); set(LATLONBBMINY, String.valueOf(miny)); set(LATLONBBCRS, crs); } private final static String NATIVEBBMINX = "nativeBoundingBox/minx"; private final static String NATIVEBBMAXX = "nativeBoundingBox/maxx"; private final static String NATIVEBBMINY = "nativeBoundingBox/miny"; private final static String NATIVEBBMAXY = "nativeBoundingBox/maxy"; private final static String NATIVEBBCRS = "nativeBoundingBox/crs"; /** * @param minx * @param maxy * @param maxx * @param miny * @param crs */ protected void addNativeBoundingBox(double minx, double miny, double maxx, double maxy, final String crs) { add(NATIVEBBMINX, String.valueOf(minx)); add(NATIVEBBMAXY, String.valueOf(maxy)); add(NATIVEBBMAXX, String.valueOf(maxx)); add(NATIVEBBMINY, String.valueOf(miny)); add(NATIVEBBCRS, crs); } public void setNativeBoundingBox(double minx, double miny, double maxx, double maxy, final String crs) { set(NATIVEBBMINX, String.valueOf(minx)); set(NATIVEBBMAXY, String.valueOf(maxy)); set(NATIVEBBMAXX, String.valueOf(maxx)); set(NATIVEBBMINY, String.valueOf(miny)); set(NATIVEBBCRS, crs); } }




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