json/bundles/org.eclipse.wst.json.core/src/org/eclipse/wst/json/core/internal/schema/catalog/CatalogElement.java

/*******************************************************************************
 * Copyright (c) 2002, 2016 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *     Jesper Steen Moller - jesper@selskabet.org - bug 112284
 *     Angelo Zerr <angelo.zerr@gmail.com> - copied from org.eclipse.wst.xml.core.internal.catalog.CatalogElement
 *                                           modified in order to process JSON Objects.               
 *******************************************************************************/
package org.eclipse.wst.json.core.internal.schema.catalog;

import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.wst.json.core.schema.catalog.ICatalog;
import org.eclipse.wst.json.core.schema.catalog.ICatalogElement;

public class CatalogElement implements ICatalogElement {
	int type;

	String id;

	String base;

	Map attributes = new HashMap();

	ICatalog ownerCatalog;

	public CatalogElement(int aType) {
		super();
		type = aType;
	}

	public int getType() {
		return type;
	}

	public String getBase() {
		return base;
	}

	public void setBase(String base) {
		this.base = base;
	}

	public String getAttributeValue(String name) {
		return (String) attributes.get(name);
	}

	public void setAttributeValue(String name, String value) {
		attributes.put(name, value);
	}

	public String[] getAttributes() {
		Collection c = attributes.values();
		String[] result = new String[c.size()];
		attributes.keySet().toArray(result);
		return result;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public ICatalog getOwnerCatalog() {
		return ownerCatalog;
	}

	public void setOwnerCatalog(ICatalog catalog) {
		this.ownerCatalog = catalog;
	}

	protected static String makeAbsolute(String baseLocation, String location) {
		URL local = null;
		location = location.replace('\\', '/');
		try {
			URL baseURL = new URL(baseLocation);
			local = new URL(baseURL, location);
		} catch (MalformedURLException e) {
		}

		if (local != null) {
			return local.toString();
		} else {
			return location;
		}
	}

	public String getAbsolutePath(String path) {
		try {
			URI uri = new URI(path);
			if (uri.isAbsolute()) {
				return path;
			}
		} catch (URISyntaxException e) {
		}

		if (this.base != null && !this.base.equals("")) //$NON-NLS-1$
		{
			return makeAbsolute(base, path);
		}

		String result = path;
		Catalog catalog = (Catalog) getOwnerCatalog();
		if (catalog != null) {
			String base = catalog.getBase();
			if (base == null || base.equals("")) //$NON-NLS-1$
			{
				base = catalog.getLocation();
			}
			result = makeAbsolute(base, path);
		}
		return result;
	}

	/*
	 * Since we don't have events notifications for entry properties, clone()
	 * could allow to copy and edit entry and then replace it in catalog. Entry
	 * replacement will signal ICatalogEvent @return
	 */
	public Object clone() {
		ICatalogElement element = ownerCatalog.createCatalogElement(type);
		String[] attributes = getAttributes();
		for (int i = 0; i < attributes.length; i++) {
			String attrName = attributes[i];
			String attrValue = getAttributeValue(attrName);
			element.setAttributeValue(attrName, attrValue);
		}
		element.setOwnerCatalog(ownerCatalog);
		element.setId(id);
		element.setBase(base);
		return element;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		CatalogElement other = (CatalogElement) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

}