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Diffstat (limited to 'branches/sca-java-2.0-M4/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractMapperImpl.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractMapperImpl.java | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractMapperImpl.java b/branches/sca-java-2.0-M4/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractMapperImpl.java new file mode 100644 index 0000000000..289fd25594 --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/assembly/src/main/java/org/apache/tuscany/sca/interfacedef/impl/InterfaceContractMapperImpl.java @@ -0,0 +1,390 @@ +/* + * 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.interfacedef.impl; + +import java.util.List; + +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.IncompatibleInterfaceContractException; +import org.apache.tuscany.sca.interfacedef.Interface; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.interfacedef.Operation; + +/** + * @version $Rev$ $Date$ + */ +public class InterfaceContractMapperImpl implements InterfaceContractMapper { + + public boolean isCompatible(DataType source, DataType target, boolean remotable) { + if (source == target) { + return true; + } + if (!remotable) { + if (source == null || target == null) { + return false; + } + // For local case + return target.getPhysical().isAssignableFrom(source.getPhysical()); + } else { + // FIXME: How to test if two remotable data type is compatible? + // return target.getLogical().equals(source.getLogical()); + return true; + } + + } + + + /** + * Check that two interface contracts are equal. The contracts are equal if the two contracts have the + * same set of operations, with each operation having the same signature, both for forward and callback + * interfaces + * @param source + * @param target + * @return + */ + public boolean isEqual(InterfaceContract source, InterfaceContract target) { + // Are the forward interfaces equal? + if( isEqual( source.getInterface(), target.getInterface()) ) { + // Is there a Callback interface? + if( source.getCallbackInterface() == null && target.getCallbackInterface() == null ) { + return true; + } else { + if( isEqual( source.getCallbackInterface(), target.getCallbackInterface()) ) { + return true; + } // end if + } // end if + } // end if + return false; + } // end method isEqual + + /** + * Check that two interfaces are equal. The interfaces are equal if the two interfaces have the + * same set of operations, with each operation having the same signature. + * @param source + * @param target + * @return + */ + public boolean isEqual(Interface source, Interface target) { + if (source == target) { + // Shortcut for performance + return true; + } // end if + if (source == null || target == null) { + return false; + } // end if + + if (source.isDynamic() || target.isDynamic()) { + return true; + } + + if (source.isRemotable() != target.isRemotable()) { + return false; + } + if (source.isConversational() != target.isConversational()) { + return false; + } + if( source.getOperations().size() != target.getOperations().size() ) { + return false; + } + + for (Operation operation : source.getOperations()) { + Operation targetOperation = getOperation(target.getOperations(), operation.getName()); + if (targetOperation == null) { + return false; + } + if (!isCompatible(operation, targetOperation, source.isRemotable())) { + return false; + } + } + return true; + } // end method isEqual + + public boolean isCompatible(Operation source, Operation target, boolean remotable) { + if (source == target) { + return true; + } + + if (source.isDynamic() || target.isDynamic()) { + return true; + } + + // Check name + if (!source.getName().equals(target.getName())) { + return false; + } + + if (source.getInterface().isRemotable() != target.getInterface().isRemotable()) { + return false; + } + + // if (source.getInterface().isRemotable()) { + // return true; + // } + + // FIXME: We need to deal with wrapped<-->unwrapped conversion + + // Check output type + DataType<?> sourceOutputType = source.getOutputType(); + DataType<?> targetOutputType = target.getOutputType(); + + boolean checkSourceWrapper = true; + List<DataType> sourceInputType = source.getInputType().getLogical(); + if (source.isWrapperStyle() && source.getWrapper() != null) { + sourceInputType = source.getWrapper().getUnwrappedInputType().getLogical(); + sourceOutputType = source.getWrapper().getUnwrappedOutputType(); + checkSourceWrapper = false; + } + boolean checkTargetWrapper = true; + List<DataType> targetInputType = target.getInputType().getLogical(); + if (target.isWrapperStyle() && target.getWrapper() != null) { + targetInputType = target.getWrapper().getUnwrappedInputType().getLogical(); + targetOutputType = target.getWrapper().getUnwrappedOutputType(); + checkTargetWrapper = false; + } + + if (checkSourceWrapper != checkTargetWrapper) { + return true; + } + + if (!isCompatible(targetOutputType, sourceOutputType, remotable)) { + return false; + } + + if (sourceInputType.size() != targetInputType.size()) { + return false; + } + + int size = sourceInputType.size(); + for (int i = 0; i < size; i++) { + if (!isCompatible(sourceInputType.get(i), targetInputType.get(i), remotable)) { + return false; + } + } + + // Check fault types + for (DataType targetFaultType : target.getFaultTypes()) { + // Source fault types must be the same or superset of target fault + // types + boolean found = true; + for (DataType sourceFaultType : source.getFaultTypes()) { + found = false; + if (isCompatible(targetFaultType, sourceFaultType, remotable)) { + // Target fault type can be covered by the source fault type + found = true; + break; + } + } + if (!found) { + return false; + } + } + + return true; + } + + // FIXME: How to improve the performance for the lookup + private Operation getOperation(List<Operation> operations, String name) { + for (Operation op : operations) { + if (op.getName().equals(name)) { + return op; + } + } + return null; + } + + public boolean checkCompatibility(InterfaceContract source, + InterfaceContract target, + boolean ignoreCallback, + boolean silent) throws IncompatibleInterfaceContractException { + if (source == target) { + // Shortcut for performance + return true; + } + + if (source == null || target == null){ + return false; + } + + if (source.getInterface() == target.getInterface()){ + return true; + } + + if (source.getInterface() == null || target.getInterface() == null){ + return false; + } + + if (source.getInterface().isDynamic() || target.getInterface().isDynamic()) { + return true; + } + + if (source.getInterface().isRemotable() != target.getInterface().isRemotable()) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Remotable settings do not match", source, target); + } else { + return false; + } + } + if (source.getInterface().isConversational() != target.getInterface().isConversational()) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Interaction scopes do not match", source, target); + } else { + return false; + } + } + + for (Operation operation : source.getInterface().getOperations()) { + Operation targetOperation = map(target.getInterface(), operation); + if (targetOperation == null) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Operation not found on target", source, target); + } else { + return false; + } + } + if (!source.getInterface().isRemotable()) { + // FIXME: for remotable operation, only compare name for now + if (!isCompatible(operation, targetOperation, false)) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Target operations are not compatible", + source, target); + } else { + return false; + } + } + } + } + + if (ignoreCallback) { + return true; + } + + if (source.getCallbackInterface() == null && target.getCallbackInterface() == null) { + return true; + } + if (source.getCallbackInterface() == null || target.getCallbackInterface() == null) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Callback interface doesn't match", source, target); + } else { + return false; + } + } + + if (source.getCallbackInterface().isConversational() != target.getCallbackInterface().isConversational()) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Interaction scopes do not match", source, target); + } else { + return false; + } + } + + for (Operation operation : source.getCallbackInterface().getOperations()) { + Operation targetOperation = + getOperation(target.getCallbackInterface().getOperations(), operation.getName()); + if (targetOperation == null) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Callback operation not found on target", source, + target, null, targetOperation); + } else { + return false; + } + } + if (!source.getCallbackInterface().isRemotable()) { + // FIXME: for remotable operation, only compare name for now + if (!operation.equals(targetOperation)) { + if (!silent) { + throw new IncompatibleInterfaceContractException("Target callback operation is not compatible", + source, target, operation, targetOperation); + } else { + return false; + } + } + } + } + return true; + } + + public boolean isCompatible(Interface source, Interface target) { + if (source == target) { + // Shortcut for performance + return true; + } + if (source == null || target == null) { + return false; + } + + if (source.isDynamic() || target.isDynamic()) { + return true; + } + + if (source.isRemotable() != target.isRemotable()) { + return false; + } + if (source.isConversational() != target.isConversational()) { + return false; + } + + for (Operation operation : source.getOperations()) { + Operation targetOperation = getOperation(target.getOperations(), operation.getName()); + if (targetOperation == null) { + return false; + } + if (!isCompatible(operation, targetOperation, source.isRemotable())) { + return false; + } + } + return true; + } + + public boolean isCompatible(InterfaceContract source, InterfaceContract target) { + try { + return checkCompatibility(source, target, false, false); + } catch (IncompatibleInterfaceContractException e) { + return false; + } + } + + /** + * @see org.apache.tuscany.sca.interfacedef.InterfaceContractMapper#map(org.apache.tuscany.sca.interfacedef.Interface, + * org.apache.tuscany.sca.interfacedef.Operation) + */ + public Operation map(Interface target, Operation source) { + // TODO: How to handle the case that source operation is dynamic? + if (target == null || target.isDynamic()) { + return source; + } else if (target.isRemotable()) { + for (Operation op : target.getOperations()) { + if (op.getName().equals(source.getName())) { + return op; + } + } + return null; + } else { + for (Operation op : target.getOperations()) { + if (isCompatible(source, op, target.isRemotable())) { + return op; + } + } + return null; + } + + } + +} |