metadatacontext.java

esri的ArcGIS Server超级学习模板程序（for java）

package com.esri.solutions.jitk.common.metadata;

import java.util.HashMap;
import java.util.Map;

import com.esri.adf.web.data.GISResource;

/**
 * Basic {@link IMetadataContext} implementation providing minimal lookup capabilities
 */
public class MetadataContext implements IMetadataContext {

	/**
	 * Registry for {@link IMetadataCatalog} instances, keyed by their ID field
	 */
	private Map<String, IMetadataCatalog> _metadataCatalogs = new HashMap<String, IMetadataCatalog>();

	/**
	 * Registry for {@link IMetadataProfile} instances, keyed by their name
	 */
	private Map<String, IMetadataProfile> _metadataProfiles = new HashMap<String, IMetadataProfile>();
	/**
	 * {@link IResourceMetadataRegistry} instance that allows lookups of {@link GISResource GISResources} and {@link IMetadataID IMetadataIDs}
	 */
	private IResourceMetadataRegistry _registry = null;

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.esri.solutions.jitk.common.metadata.IMetadataContext#getCatalogById(java.lang.String)
	 */
	public IMetadataCatalog getCatalogById(String catalogID) {
		if (catalogID == null) {
			throw new NullPointerException("catalogID cannot be null");
		}
		return _metadataCatalogs.get(catalogID);
	}

	/**
	 * Sets a {@link Map} of all metadata catalog values, keyed by their Ids, which should be derived from {@link IMetadataCatalog#getID()}
	 * @param catalogs The catalog map; cannot be {@code null}
	 */
	public void setMetadataCatalogs(Map<String, IMetadataCatalog> catalogs) {
		if (catalogs == null) {
			throw new NullPointerException("catalogs cannot be null");
		}
		_metadataCatalogs = catalogs;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.esri.solutions.jitk.common.metadata.IMetadataContext#getMetadataCatalogs()
	 */
	public Map<String, IMetadataCatalog> getMetadataCatalogs() {
		return _metadataCatalogs;
	}

	/**
	 * Sets a {@link Map} of all metadata profile values, keyed by their names, which should be derived from {@link IMetadataProfile#getName()}
	 * @param profiles The profile map; cannot be {@code null}
	 */
	public void setMetadataProfiles(Map<String, IMetadataProfile> profiles) {
		if (profiles == null) {
			throw new NullPointerException("profiles cannot be null");
		}
		_metadataProfiles = profiles;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.esri.solutions.jitk.common.metadata.IMetadataContext#getMetadataProfiles()
	 */
	public Map<String, IMetadataProfile> getMetadataProfiles() {
		return _metadataProfiles;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.esri.solutions.jitk.common.metadata.IMetadataContext#getProfileById(java.lang.String)
	 */
	public IMetadataProfile getProfileById(String name) {
		if (name == null) {
			throw new NullPointerException("name cannot be null");
		}
		return _metadataProfiles.get(name);
	}

	/**
	 * Sets the {@link IResourceMetadataRegistry} used by this context
	 * @param registry The {@link IResourceMetadataRegistry}; cannot be {@code null}
	 */
	public void setResourceMetadataRegistry(IResourceMetadataRegistry registry) {
		if (registry == null) {
			throw new NullPointerException("registry cannot be null");
		}
		_registry = registry;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.esri.solutions.jitk.common.metadata.IMetadataContext#getResourceMetadataRegistry()
	 */
	public IResourceMetadataRegistry getResourceMetadataRegistry() {
		return _registry;
	}

}