diff options
Diffstat (limited to 'sandbox/mobile-android/tuscany-policy-xml/src/main/java/org/apache/tuscany/sca/policy/xml/IntentAttachPointTypeProcessor.java')
| -rw-r--r-- | sandbox/mobile-android/tuscany-policy-xml/src/main/java/org/apache/tuscany/sca/policy/xml/IntentAttachPointTypeProcessor.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/sandbox/mobile-android/tuscany-policy-xml/src/main/java/org/apache/tuscany/sca/policy/xml/IntentAttachPointTypeProcessor.java b/sandbox/mobile-android/tuscany-policy-xml/src/main/java/org/apache/tuscany/sca/policy/xml/IntentAttachPointTypeProcessor.java new file mode 100644 index 0000000000..a69e3aca3a --- /dev/null +++ b/sandbox/mobile-android/tuscany-policy-xml/src/main/java/org/apache/tuscany/sca/policy/xml/IntentAttachPointTypeProcessor.java @@ -0,0 +1,219 @@ +/*
+ * 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.tuscany.sca.policy.xml;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.IntentAttachPointTypeFactory;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.impl.BindingTypeImpl;
+import org.apache.tuscany.sca.policy.impl.ImplementationTypeImpl;
+
+
+/**
+ * Processor for handling XML models of ExtensionType meta data definitions
+ */
+public abstract class IntentAttachPointTypeProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<IntentAttachPointType>, PolicyConstants {
+
+ private IntentAttachPointTypeFactory attachPointTypeFactory;
+ private PolicyFactory policyFactory;
+
+ protected abstract IntentAttachPointType resolveExtensionType(IntentAttachPointType extnType, ModelResolver resolver) throws ContributionResolveException;
+
+ public IntentAttachPointTypeProcessor(PolicyFactory policyFactory, IntentAttachPointTypeFactory attachPointTypeFactory, StAXArtifactProcessor<Object> extensionProcessor) {
+ this.policyFactory = policyFactory;
+ this.attachPointTypeFactory = attachPointTypeFactory;
+ }
+
+ public IntentAttachPointType read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+ QName type = getQName(reader, TYPE);
+
+ if ( type != null ) {
+ if ( type.getLocalPart().startsWith(BINDING) ) {
+ IntentAttachPointType bindingType = attachPointTypeFactory.createBindingType();
+ bindingType.setName(type);
+ bindingType.setUnresolved(true);
+
+ readAlwaysProvidedIntents(bindingType, reader);
+ readMayProvideIntents(bindingType, reader);
+ return bindingType;
+ } else if ( type.getLocalPart().startsWith(IMPLEMENTATION) ) {
+ IntentAttachPointType implType = attachPointTypeFactory.createImplementationType();
+ implType.setName(type);
+ implType.setUnresolved(true);
+
+ readAlwaysProvidedIntents(implType, reader);
+ readMayProvideIntents(implType, reader);
+ return implType;
+ } else {
+ throw new ContributionReadException("Unrecognized IntentAttachPointType - " + type);
+ }
+ } else {
+ throw new ContributionReadException("Required attribute '" + TYPE +
+ "' missing from BindingType Definition");
+ }
+ }
+
+ private void readAlwaysProvidedIntents(IntentAttachPointType extnType, XMLStreamReader reader) {
+ String value = reader.getAttributeValue(null, ALWAYS_PROVIDES);
+ if (value != null) {
+ List<Intent> alwaysProvided = extnType.getAlwaysProvidedIntents();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ QName qname = getQNameValue(reader, tokens.nextToken());
+ Intent intent = policyFactory.createIntent();
+ intent.setName(qname);
+ alwaysProvided.add(intent);
+ }
+ }
+ }
+
+ private void readMayProvideIntents(IntentAttachPointType extnType, XMLStreamReader reader) {
+ String value = reader.getAttributeValue(null, MAY_PROVIDE);
+ if (value != null) {
+ List<Intent> mayProvide = extnType.getMayProvideIntents();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ QName qname = getQNameValue(reader, tokens.nextToken());
+ Intent intent = policyFactory.createIntent();
+ intent.setName(qname);
+ mayProvide.add(intent);
+ }
+ }
+ }
+
+ public void write(IntentAttachPointType extnType, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+
+ // Write an <sca:bindingType or sca:implementationType>
+ if ( extnType instanceof BindingTypeImpl ) {
+ writer.writeStartElement(SCA10_NS, BINDING_TYPE);
+ } else if ( extnType instanceof ImplementationTypeImpl ) {
+ writer.writeStartElement(SCA10_NS, IMPLEMENTATION_TYPE);
+ }
+
+ writeAlwaysProvidesIntentsAttribute(extnType, writer);
+ writeMayProvideIntentsAttribute(extnType, writer);
+
+ writer.writeEndElement();
+ }
+
+ private void writeMayProvideIntentsAttribute(IntentAttachPointType extnType, XMLStreamWriter writer) throws XMLStreamException {
+ StringBuffer sb = new StringBuffer();
+ for ( Intent intent : extnType.getMayProvideIntents() ) {
+ writer.writeNamespace(intent.getName().getPrefix(), intent.getName().getNamespaceURI());
+ sb.append(intent.getName().getPrefix() + COLON + intent.getName().getLocalPart());
+ sb.append(WHITE_SPACE);
+ }
+
+ if ( sb.length() > 0 ) {
+ writer.writeAttribute(MAY_PROVIDE, sb.toString());
+ }
+ }
+
+ private void writeAlwaysProvidesIntentsAttribute(IntentAttachPointType extnType, XMLStreamWriter writer) throws XMLStreamException {
+ StringBuffer sb = new StringBuffer();
+ for ( Intent intent : extnType.getAlwaysProvidedIntents() ) {
+ writer.writeNamespace(intent.getName().getPrefix(), intent.getName().getNamespaceURI());
+ sb.append(intent.getName().getPrefix() + COLON + intent.getName().getLocalPart());
+ sb.append(WHITE_SPACE);
+ }
+
+ if ( sb.length() > 0 ) {
+ writer.writeAttribute(ALWAYS_PROVIDES, sb.toString());
+
+ }
+ }
+
+ public void resolve(IntentAttachPointType extnType, ModelResolver resolver) throws ContributionResolveException {
+ resolveAlwaysProvidedIntents(extnType, resolver);
+ resolveMayProvideIntents(extnType, resolver);
+ extnType.setUnresolved(false);
+ //resolveExtensionType(extnType, resolver);
+ }
+
+ private void resolveAlwaysProvidedIntents(IntentAttachPointType extensionType,
+ ModelResolver resolver) throws ContributionResolveException {
+ if (extensionType != null) {
+ // resolve all provided intents
+ List<Intent> alwaysProvided = new ArrayList<Intent>();
+ for (Intent providedIntent : extensionType.getAlwaysProvidedIntents()) {
+ if (providedIntent.isUnresolved()) {
+ providedIntent = resolver.resolveModel(Intent.class, providedIntent);
+ if (!providedIntent.isUnresolved()) {
+ alwaysProvided.add(providedIntent);
+ } else {
+ throw new ContributionResolveException(
+ "Always Provided Intent - " + providedIntent
+ + " not found for ExtensionType "
+ + extensionType);
+
+ }
+ } else {
+ alwaysProvided.add(providedIntent);
+ }
+ }
+ extensionType.getAlwaysProvidedIntents().clear();
+ extensionType.getAlwaysProvidedIntents().addAll(alwaysProvided);
+ }
+ }
+
+ private void resolveMayProvideIntents(IntentAttachPointType extensionType,
+ ModelResolver resolver) throws ContributionResolveException {
+ if (extensionType != null) {
+ // resolve all provided intents
+ List<Intent> mayProvide = new ArrayList<Intent>();
+ for (Intent providedIntent : extensionType.getMayProvideIntents()) {
+ if (providedIntent.isUnresolved()) {
+ providedIntent = resolver.resolveModel(Intent.class, providedIntent);
+ if (!providedIntent.isUnresolved()) {
+ mayProvide.add(providedIntent);
+ } else {
+ throw new ContributionResolveException(
+ "May Provide Intent - " + providedIntent
+ + " not found for ExtensionType "
+ + extensionType);
+
+ }
+ } else {
+ mayProvide.add(providedIntent);
+ }
+ }
+ extensionType.getMayProvideIntents().clear();
+ extensionType.getMayProvideIntents().addAll(mayProvide);
+ }
+ }
+
+ public Class<IntentAttachPointType> getModelType() {
+ return IntentAttachPointType.class;
+ }
+}
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