Author: markt
Date: Mon Jul 15 12:58:44 2013
New Revision: 1503217
URL: http://svn.apache.org/r1503217
Log:
Implement first collection operation for EL 3.0.
Added:
tomcat/trunk/java/org/apache/el/stream/
tomcat/trunk/java/org/apache/el/stream/Optional.java (with props)
tomcat/trunk/java/org/apache/el/stream/Stream.java (with props)
tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java (with
props)
tomcat/trunk/test/org/apache/el/stream/
tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java
(with props)
Modified:
tomcat/trunk/java/org/apache/el/ExpressionFactoryImpl.java
Modified: tomcat/trunk/java/org/apache/el/ExpressionFactoryImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/el/ExpressionFactoryImpl.java?rev=1503217&r1=1503216&r2=1503217&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/el/ExpressionFactoryImpl.java (original)
+++ tomcat/trunk/java/org/apache/el/ExpressionFactoryImpl.java Mon Jul 15
12:58:44 2013
@@ -14,7 +14,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
package org.apache.el;
import javax.el.ELContext;
@@ -25,6 +24,7 @@ import javax.el.ValueExpression;
import org.apache.el.lang.ELSupport;
import org.apache.el.lang.ExpressionBuilder;
+import org.apache.el.stream.StreamELResolverImpl;
import org.apache.el.util.MessageFactory;
@@ -80,7 +80,6 @@ public class ExpressionFactoryImpl exten
@Override
public ELResolver getStreamELResolver() {
- // TODO Implement a streamELResolver
- return null;
+ return new StreamELResolverImpl();
}
}
Added: tomcat/trunk/java/org/apache/el/stream/Optional.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/el/stream/Optional.java?rev=1503217&view=auto
==============================================================================
--- tomcat/trunk/java/org/apache/el/stream/Optional.java (added)
+++ tomcat/trunk/java/org/apache/el/stream/Optional.java Mon Jul 15 12:58:44
2013
@@ -0,0 +1,21 @@
+/*
+ * 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.el.stream;
+
+public class Optional {
+
+}
Propchange: tomcat/trunk/java/org/apache/el/stream/Optional.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: tomcat/trunk/java/org/apache/el/stream/Stream.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/el/stream/Stream.java?rev=1503217&view=auto
==============================================================================
--- tomcat/trunk/java/org/apache/el/stream/Stream.java (added)
+++ tomcat/trunk/java/org/apache/el/stream/Stream.java Mon Jul 15 12:58:44 2013
@@ -0,0 +1,39 @@
+/*
+ * 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.el.stream;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+public class Stream {
+
+ private final Iterator<?> iterator;
+
+ public Stream(Iterator<?> iterator) {
+ this.iterator = iterator;
+ }
+
+
+ public List<Object> toList() {
+ List<Object> result = new ArrayList<>();
+ while (iterator.hasNext()) {
+ result.add(iterator.next());
+ }
+ return result;
+ }
+}
Propchange: tomcat/trunk/java/org/apache/el/stream/Stream.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java?rev=1503217&view=auto
==============================================================================
--- tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java (added)
+++ tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java Mon Jul 15
12:58:44 2013
@@ -0,0 +1,76 @@
+/*
+ * 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.el.stream;
+
+import java.beans.FeatureDescriptor;
+import java.util.Collection;
+import java.util.Iterator;
+
+import javax.el.ELContext;
+import javax.el.ELResolver;
+
+public class StreamELResolverImpl extends ELResolver {
+
+ @Override
+ public Object getValue(ELContext context, Object base, Object property) {
+ return null;
+ }
+
+ @Override
+ public Class<?> getType(ELContext context, Object base, Object property) {
+ return null;
+ }
+
+ @Override
+ public void setValue(ELContext context, Object base, Object property,
+ Object value) {
+ // NO-OP
+ }
+
+ @Override
+ public boolean isReadOnly(ELContext context, Object base, Object property)
{
+ return false;
+ }
+
+ @Override
+ public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context,
+ Object base) {
+ return null;
+ }
+
+ @Override
+ public Class<?> getCommonPropertyType(ELContext context, Object base) {
+ return null;
+ }
+
+ @Override
+ public Object invoke(ELContext context, Object base, Object method,
+ Class<?>[] paramTypes, Object[] params) {
+
+ if ("stream".equals(method) && params.length == 0) {
+ if (base.getClass().isArray()) {
+ // TODO handle array source
+ } else if (base instanceof Collection) {
+ context.setPropertyResolved(true);
+ return new Stream(((Collection<?>) base).iterator());
+ }
+ }
+
+ // Not for handling by this resolver
+ return null;
+ }
+}
Propchange: tomcat/trunk/java/org/apache/el/stream/StreamELResolverImpl.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java?rev=1503217&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java (added)
+++ tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java Mon
Jul 15 12:58:44 2013
@@ -0,0 +1,41 @@
+/*
+ * 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.el.stream;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.el.ELProcessor;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestCollectionOperations {
+
+ @Test
+ public void testToList01() {
+ ELProcessor processor = new ELProcessor();
+ Object result = processor.getValue("['a','b','c'].stream().toList()",
+ List.class);
+ List<String> expected = new ArrayList<>(3);
+ expected.add("a");
+ expected.add("b");
+ expected.add("c");
+
+ Assert.assertEquals(expected, result);
+ }
+}
Propchange: tomcat/trunk/test/org/apache/el/stream/TestCollectionOperations.java
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svn:eol-style = native
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