296 lines
8.0 KiB
Java
296 lines
8.0 KiB
Java
///**
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// *
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// */
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//package org.gcube.portlets.user.workspace.server.util;
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//
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//import java.io.ByteArrayInputStream;
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//import java.io.IOException;
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//import java.io.InputStream;
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//import java.io.InputStreamReader;
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//import java.io.StringReader;
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//import java.io.StringWriter;
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//import java.rmi.RemoteException;
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//import java.util.LinkedHashMap;
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//import java.util.List;
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//import java.util.Map;
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//
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//import javax.xml.transform.OutputKeys;
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//import javax.xml.transform.Templates;
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//import javax.xml.transform.Transformer;
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//import javax.xml.transform.TransformerException;
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//import javax.xml.transform.TransformerFactory;
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//import javax.xml.transform.stream.StreamResult;
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//import javax.xml.transform.stream.StreamSource;
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//
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//import org.apache.commons.io.IOUtils;
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//import org.apache.log4j.Logger;
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//import org.gcube.application.framework.core.genericresources.model.ISGenericResource;
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//import org.gcube.application.framework.core.session.ASLSession;
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//import org.gcube.application.framework.core.util.GenericResource;
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//
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///**
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// * @author Federico De Faveri defaveri@isti.cnr.it
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// *
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// */
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//public class MetadataConverter {
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//
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// protected Logger logger;
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//
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// /**
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// * FIXME public as generic resource
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// */
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// protected static final String DEFAULT_XSLT = "/org/gcube/portlets/user/workspace/server/util/resources/xmlverbatim.xsl";
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//
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// /**
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// * Schema name to XSLT generic resource id map.
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// */
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// protected Map<String, String> schemaNameId = new LinkedHashMap<String, String>();
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//
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// /**
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// * Id to XSLT map cache.
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// */
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// protected Map<String, String> xsltCache = new LinkedHashMap<String, String>();
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//
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// protected boolean setup = false;
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//
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// /**
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// * Create a new MetadataConverter.
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// */
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// public MetadataConverter(Logger logger) {
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// this.logger = logger;
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// }
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//
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// /**
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// * Load user xslt.
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// *
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// * @param aslSession
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// */
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// public synchronized void setup(ASLSession aslSession) {
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// if (!setup)
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// retrieveXSLTIds(aslSession);
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// }
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//
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// public synchronized void isReady() {
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//
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// }
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//
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// /**
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// * Convert the given metadata XML to HTML.
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// *
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// * @param schemaName
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// * @param xml
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// * @param aslSession
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// * @return
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// * @throws Exception
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// */
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// public String convert(String schemaName, String xml, ASLSession aslSession)
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// throws Exception {
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// logger.trace("convert schemaName: " + schemaName + " xml.length: "
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// + xml.length() + " session: " + aslSession);
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// // we have to find from the schema name the xslt id
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//
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// String xsltId = null;
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//
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// // FIXME find a rule for schema names
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// if (schemaNameId.containsKey(schemaName))
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// xsltId = schemaNameId.get(schemaName);
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// else if (schemaNameId.containsKey(schemaName.toLowerCase()))
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// xsltId = schemaNameId.get(schemaName.toLowerCase());
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// else if (schemaNameId.containsKey(schemaName.toUpperCase()))
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// xsltId = schemaNameId.get(schemaName.toUpperCase());
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//
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// logger.trace("XSLT ID: " + xsltId);
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//
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// String xslt = null;
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//
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// if (xsltId != null) {
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// try {
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// xslt = getXSL(xsltId, aslSession);
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// } catch (RemoteException e) {
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// logger.error("Error during xslt retrieving", e);
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// }
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// }
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//
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// if (xslt == null) {
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// // we have to use the default xslt schema
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// try {
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// xslt = getDefaultXSLT();
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// } catch (IOException e) {
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// logger.error("Error during default xslt retrieving", e);
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// throw e;
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// }
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// }
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//
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// if (xslt == null)
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// throw new Exception("No xslt found");
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//
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// logger.trace("XSLT: " + xslt);
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// logger.trace("XML: " + xml);
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//
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// String html = transform(xml, xslt);
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//
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// return html;
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// }
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//
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// /**
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// * Convert the given XML to HTML using the default XSLT.
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// *
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// * @param xml
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// * the XML to convert.
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// * @param aslSession
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// * the user session.
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// * @return the HTML.
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// * @throws Exception
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// */
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// public String convertUsingDefault(String xml, ASLSession aslSession)
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// throws Exception {
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// logger.trace("convertUsingDefault xml.length: " + xml.length()
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// + " session: " + aslSession);
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//
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// String xslt = getDefaultXSLT();
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//
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// if (xslt == null)
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// throw new Exception("No xslt found");
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//
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// logger.trace("XSLT: " + xslt);
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// logger.trace("XML: " + xml);
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//
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// String html = transform(xml, xslt);
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//
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// return html;
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// }
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//
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// /**
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// * Retrieve from user profile all transformation schemas id.
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// *
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// * @param aslSession
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// */
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// protected void retrieveXSLTIds(ASLSession aslSession) {
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// logger.trace("retrieveXSLTIds aslSession: " + aslSession);
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//
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// /*
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// * TODO RE-ENABLE
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// *
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// * try{
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// *
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// * UserProfile userprofile = new UserProfile(aslSession);
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// * logger.trace("Profile loaded");
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// *
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// * HashMap<String, String> idSchemaNameMap =
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// * userprofile.getMetadataXSLTs(aslSession.getUsername());
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// *
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// * logger.trace("found "+idSchemaNameMap.size()+" schema maps");
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// *
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// * for (Map.Entry<String, String> idSchemaName
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// * :idSchemaNameMap.entrySet()){ String id = idSchemaName.getValue();
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// * String schemaName = idSchemaName.getKey();
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// *
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// * logger.trace("id: "+id+" schema: "+schemaName);
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// *
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// * int uIndex = schemaName.lastIndexOf("-|-"); if (uIndex>=0) schemaName
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// * = schemaName.substring(0, uIndex);
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// *
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// * logger.trace("schema: "+schemaName);
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// *
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// * schemaNameId.put(schemaName, id); } }catch(Throwable e) { //FIXME add
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// * exception to log
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// * logger.error("Something wrong retriving the user profile informations"
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// * ); }
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// */
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// }
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//
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// /**
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// * Get a XSLT from is id. If the XSLT is not in the cache then is retrieved
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// * from IS.
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// *
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// * @param xsltId
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// * the XSLT id.
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// * @param aslSession
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// * @return the XSLT.
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// * @throws RemoteException
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// */
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// protected String getXSL(String xsltId, ASLSession aslSession)
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// throws RemoteException {
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// if (xsltCache.containsKey(xsltId))
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// return xsltCache.get(xsltId);
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//
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// String xslt = retrieveXSLT(xsltId, aslSession);
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// if (xslt == null)
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// return null;
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//
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// xsltCache.put(xsltId, xslt);
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//
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// return xslt;
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// }
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//
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// /**
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// * Retrieve a schema from his generic resource.
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// *
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// * @param xslId
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// * the schema id.
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// * @param aslSession
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// * @return the schema.
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// * @throws RemoteException
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// */
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// protected String retrieveXSLT(String xslId, ASLSession aslSession)
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// throws RemoteException {
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// GenericResource resource = new GenericResource(aslSession);
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// List<ISGenericResource> genericResources = resource
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// .getGenericResourceByID(xslId);
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// if (genericResources.size() == 0) {
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// logger.error("xsltId resource not found for id " + xslId);
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// return null;
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// }
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//
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// ISGenericResource xsltResource = genericResources.get(0);
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// String xsltBody = xsltResource.getBody();
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// String xslt = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
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// + xsltBody;
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//
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// return xslt;
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// }
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//
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// /**
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// * Transform an XML string to HTML string using an XSLT processor.
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// *
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// * @param xml
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// * the XML to convert.
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// * @param xslt
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// * the XML used for the conversion.
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// * @return the HTML.
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// * @throws TransformerException
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// * if an error occurs.
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// */
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// protected String transform(String xml, String xslt)
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// throws TransformerException {
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// TransformerFactory tf = TransformerFactory.newInstance();
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// StreamSource source = new StreamSource(new ByteArrayInputStream(
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// xslt.getBytes()));
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// Templates compiledXSLT = tf.newTemplates(source);
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// Transformer t = compiledXSLT.newTransformer();
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// t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "true");
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// StringWriter w = new StringWriter();
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// t.transform(new StreamSource(new StringReader(xml)),
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// new StreamResult(w));
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// return w.toString();
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// }
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//
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// protected String getDefaultXSLT() throws IOException {
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// InputStream is = MetadataConverter.class
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// .getResourceAsStream(DEFAULT_XSLT);
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//
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// if (is == null) {
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// logger.error("Default XSLT resource not found on " + DEFAULT_XSLT);
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// return null;
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// }
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//
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// InputStreamReader isr = new InputStreamReader(is);
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//
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// StringWriter sw = new StringWriter();
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//
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// IOUtils.copy(isr, sw);
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//
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// return sw.toString();
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// }
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//}
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