OPENNLP-472 Copying impl classes from corpus-server project.
diff --git a/corpus-server-impl/src/main/java/org/apache/opennlp/corpus_server/impl/UimaUtil.java b/corpus-server-impl/src/main/java/org/apache/opennlp/corpus_server/impl/UimaUtil.java
new file mode 100644
index 0000000..c97ced3
--- /dev/null
+++ b/corpus-server-impl/src/main/java/org/apache/opennlp/corpus_server/impl/UimaUtil.java
@@ -0,0 +1,118 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.opennlp.corpus_server;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+import org.apache.uima.ResourceSpecifierFactory;
+import org.apache.uima.UIMAFramework;
+import org.apache.uima.cas.CAS;
+import org.apache.uima.cas.impl.XmiCasDeserializer;
+import org.apache.uima.resource.ResourceInitializationException;
+import org.apache.uima.resource.metadata.FsIndexDescription;
+import org.apache.uima.resource.metadata.TypePriorities;
+import org.apache.uima.resource.metadata.TypeSystemDescription;
+import org.apache.uima.resource.metadata.impl.FsIndexDescription_impl;
+import org.apache.uima.util.CasCreationUtils;
+import org.apache.uima.util.InvalidXMLException;
+import org.apache.uima.util.XMLInputSource;
+import org.apache.uima.util.XMLParser;
+import org.xml.sax.SAXException;
+
+public class UimaUtil {
+
+ public static TypeSystemDescription createTypeSystemDescription(InputStream in) {
+
+ // Note:
+ // Type System location is not set correctly,
+ // resolving a referenced type system will fail
+
+ XMLInputSource xmlTypeSystemSource = new XMLInputSource(in, new File(""));
+
+ XMLParser xmlParser = UIMAFramework.getXMLParser();
+
+ TypeSystemDescription typeSystemDesciptor;
+
+ try {
+ typeSystemDesciptor = (TypeSystemDescription) xmlParser
+ .parse(xmlTypeSystemSource);
+
+ typeSystemDesciptor.resolveImports();
+ } catch (InvalidXMLException e) {
+ e.printStackTrace();
+ typeSystemDesciptor = null;
+ }
+
+ return typeSystemDesciptor;
+ }
+
+ public static CAS createEmptyCAS(TypeSystemDescription typeSystem) {
+ ResourceSpecifierFactory resourceSpecifierFactory = UIMAFramework
+ .getResourceSpecifierFactory();
+ TypePriorities typePriorities = resourceSpecifierFactory
+ .createTypePriorities();
+
+ FsIndexDescription indexDesciptor = new FsIndexDescription_impl();
+ indexDesciptor.setLabel("TOPIndex");
+ indexDesciptor.setTypeName("uima.cas.TOP");
+ indexDesciptor.setKind(FsIndexDescription.KIND_SORTED);
+
+ CAS cas;
+ try {
+ cas = CasCreationUtils.createCas(typeSystem, typePriorities,
+ new FsIndexDescription[] { indexDesciptor });
+ } catch (ResourceInitializationException e) {
+ e.printStackTrace();
+ cas = null;
+ }
+
+ return cas;
+ }
+
+ public static void deserializeXmiCAS(CAS cas, InputStream xmiIn) throws IOException {
+
+ SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
+ saxParserFactory.setValidating(false);
+
+ SAXParser saxParser;
+
+ try {
+ saxParser = saxParserFactory.newSAXParser();
+ } catch (ParserConfigurationException e) {
+ throw new IllegalStateException(
+ "SAXParser should be configured correctly!", e);
+ } catch (SAXException e) {
+ throw new IllegalStateException("SAX error while creating parser!", e);
+ }
+
+ XmiCasDeserializer dezerializer = new XmiCasDeserializer(
+ cas.getTypeSystem());
+
+ try {
+ saxParser.parse(xmiIn, dezerializer.getXmiCasHandler(cas));
+ } catch (SAXException e) {
+ throw new IOException("Invalid XMI input!", e);
+ }
+ }
+}
