1 files changed, 138 insertions, 0 deletions
diff --git a/json/bundles/org.eclipse.wst.json.core/src/org/eclipse/wst/json/core/internal/schema/catalog/EntryParser.java b/json/bundles/org.eclipse.wst.json.core/src/org/eclipse/wst/json/core/internal/schema/catalog/EntryParser.java
new file mode 100644
index 0000000000..acb659aae8
--- /dev/null
+++ b/json/bundles/org.eclipse.wst.json.core/src/org/eclipse/wst/json/core/internal/schema/catalog/EntryParser.java
@@ -0,0 +1,138 @@
+/*************************************************************************************
+ * Copyright (c) 2014-2015 Red Hat, Inc. and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *     JBoss by Red Hat - Initial implementation.
+ ************************************************************************************/
+package org.eclipse.wst.json.core.internal.schema.catalog;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.Reader;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.preferences.IEclipsePreferences;
+import org.eclipse.core.runtime.preferences.InstanceScope;
+import org.eclipse.wst.json.core.JSONCorePlugin;
+
+@SuppressWarnings("nls")
+public class EntryParser {
+
+	public static final String JSON_CATALOG_ENTRIES = "catalogEntries"; //$NON-NLS-1$
+	private static final JAXBContext jaxbContext;
+	
+	static {
+		try {
+			jaxbContext = JAXBContext.newInstance(EntriesWrapper.class);
+		} catch (JAXBException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	public Set<UserEntry> parse(String xml) throws CoreException {
+		if (xml == null || xml.trim().isEmpty()) {
+			return null;
+		}
+		try {
+			EntriesWrapper list = (EntriesWrapper) unmarshall(jaxbContext, xml);
+			return list.entries == null ? Collections.<UserEntry>emptySet() : list.entries;
+		} catch (Exception e) {
+			throw new CoreException(new Status(IStatus.ERROR, JSONCorePlugin.PLUGIN_ID,
+					"Unable to parse entry", e));
+		}
+	}
+	
+	public String serialize(Set<UserEntry> entries) throws CoreException {
+		try {
+			EntriesWrapper list = new EntriesWrapper();
+			list.entries = entries;
+			Marshaller marshaller = jaxbContext.createMarshaller();
+			marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
+			StringWriter writer = new StringWriter();
+			marshaller.marshal(list, writer);
+			return writer.toString();
+		} catch (Exception shouldntHappen) {
+			throw new CoreException(new Status(IStatus.ERROR, JSONCorePlugin.PLUGIN_ID,
+					"Unable to serialize entries ", shouldntHappen));
+		}
+	}
+	
+	public static Set<UserEntry> getUserEntries() {
+		Set<UserEntry> entries = new LinkedHashSet<UserEntry>();
+		IEclipsePreferences prefs = getPreferences();
+		String xml = prefs.get(JSON_CATALOG_ENTRIES, null);
+		if (xml != null && !xml.trim().isEmpty()) {
+			try {
+				Set<UserEntry> set = new EntryParser().parse(xml);
+				if (set != null) {
+					entries.addAll(set);
+				}
+			} catch (CoreException e) {
+				IStatus status = new Status(IStatus.ERROR, JSONCorePlugin.PLUGIN_ID, e
+						.getLocalizedMessage(), e);
+				JSONCorePlugin.getDefault().getLog().log(status);
+			}
+		}
+		return entries;
+	}
+	
+	private static IEclipsePreferences getPreferences() {
+		IEclipsePreferences preferences = InstanceScope.INSTANCE
+				  .getNode("org.eclipse.wst.json.ui"); //$NON-NLS-1$
+		return preferences;
+	}
+	
+	@XmlRootElement(name = "entries")
+	@XmlAccessorType (XmlAccessType.FIELD)
+	static class EntriesWrapper {
+		@XmlElement(name = "entry", type=UserEntry.class)
+		Set<UserEntry> entries;
+	}
+	
+	protected Object unmarshall(JAXBContext jaxbContext, String xml) throws JAXBException, IOException, XMLStreamException {
+		return unmarshall(jaxbContext, new StringReader(xml));
+	}
+	
+	protected Object unmarshall(JAXBContext jaxbContext, File file) throws JAXBException, IOException, XMLStreamException {
+		return unmarshall(jaxbContext, new FileReader(file));
+	}
+
+	protected Object unmarshall(JAXBContext jaxbContext, Reader reader) throws JAXBException, IOException, XMLStreamException {
+		Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
+		XMLInputFactory xmlif = XMLInputFactory.newInstance();
+		Reader r = null;
+		try {
+			r = reader;
+			XMLStreamReader xmler = xmlif.createXMLStreamReader(r);
+			return jaxbUnmarshaller.unmarshal(xmler);
+		} finally {
+			if (r != null) {
+				r.close();
+			}
+		}
+	}
+}