plugins/org.eclipse.egf.core.producer/src/org/eclipse/egf/core/producer/context/ProductionContext.java - egf/org.eclipse.emf.egf - Git at Google

 /**
  *
  * Copyright (c) 2009-2010 Thales Corporate Services S.A.S.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-v2.0.
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  * Thales Corporate Services S.A.S - initial API and implementation
  *
  */
 package org.eclipse.egf.core.producer.context;

 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.egf.common.helper.ClassHelper;
 import org.eclipse.egf.common.helper.EMFHelper;
 import org.eclipse.egf.core.producer.InvocationException;
 import org.eclipse.egf.core.producer.l10n.CoreProducerMessages;
 import org.eclipse.egf.core.session.ProjectBundleSession;
 import org.eclipse.osgi.util.NLS;
 import org.osgi.framework.Bundle;

 /**
  *
  * @author Xavier Maysonnave
  *
  */
 public abstract class ProductionContext<P extends Object, T extends Object> implements IProductionContext<P, T> {

     public static final String __inputMode = "Input"; //$NON-NLS-1$

     public static final String __outputMode = "Output"; //$NON-NLS-1$

     protected class Data {

         private T _key;

         private Class<?> _clazz;

         private Object _value;

         private String _mode;

         public Data(T key, Class<?> clazz, Object value, String mode) throws InvocationException {
             if (key == null) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, mode, getName()));
             }
             _key = key;
             if (clazz == null) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_class, new Object[] {
                         mode, EMFHelper.getText(_key), getName()
                 }));
             }
             _clazz = clazz;
             // null value is a valid value
             if (value != null && _clazz.isInstance(value) == false) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
                         _clazz.getName(), mode, EMFHelper.getText(_key), value.getClass().getName(), getName()
                 }));
             }
             _value = value;
             _mode = mode;
         }

         public Class<?> getType() {
             return _clazz;
         }

         public Object getValue() {
             return _value;
         }

         public void setValue(Object value) throws InvocationException {
             // null value is a valid value
             if (value != null && _clazz.isInstance(value) == false) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
                         _clazz.getName(), _mode, EMFHelper.getText(_key), value.getClass().getName(), getName()
                 }));
             }
             _value = value;
         }

     }

     protected String _name;

     protected ProjectBundleSession _projectBundleSession;

     protected P _element;

     protected IProductionContext<?, ?> _parent;

     protected final Map<T, Data> _inputDatas = new HashMap<T, Data>();

     protected final Map<T, Data> _outputDatas = new HashMap<T, Data>();

     public ProductionContext(ProjectBundleSession projectBundleSession, P element, String name) {
         Assert.isNotNull(projectBundleSession);
         Assert.isNotNull(element);
         Assert.isNotNull(name);
         _projectBundleSession = projectBundleSession;
         _element = element;
         _name = name;
     }

     public ProductionContext(IProductionContext<?, ?> parent, ProjectBundleSession projectBundleSession, P element, String name) {
         Assert.isNotNull(projectBundleSession);
         Assert.isNotNull(element);
         Assert.isNotNull(name);
         _parent = parent;
         _projectBundleSession = projectBundleSession;
         _element = element;
         _name = name;
     }

     public String getName() {
         return _name;
     }

     public P getElement() {
         return _element;
     }

     public IProductionContext<?, ?> getParent() {
         return _parent;
     }

     public Bundle getBundle(String id) throws InvocationException {
         try {
             return _projectBundleSession.getBundle(id);
         } catch (CoreException ce) {
             throw new InvocationException(ce);
         }
     }

     public void clear() {
         _inputDatas.clear();
         _outputDatas.clear();
     }

     public boolean isSetAtRuntime(Object key) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
         }
         // Looking for Parent
         if (getParent() != null) {
             return getParent().isSetAtRuntime(key);
         }
         return false;
     }

     public void addInputData(T key, Class<?> clazz, Object object, boolean check) throws InvocationException {
         if (_inputDatas.put(key, new Data(key, clazz, object, __inputMode)) != null) {
             if (check) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_non_unique_key, new Object[] {
                         __inputMode, EMFHelper.getText(key), getName()
                 }));
             }
         }
     }

     public void addOutputData(T key, Class<?> clazz, Object object, boolean check) throws InvocationException {
         if (_outputDatas.put(key, new Data(key, clazz, object, __outputMode)) != null) {
             if (check) {
                 throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_non_unique_key, new Object[] {
                         __outputMode, EMFHelper.getText(key), getName()
                 }));
             }
         }
     }

     public void setOutputValue(Object key, Object value) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
         }
         // Propagate Value to parent if necessary
         if (getParent() != null) {
             getParent().setOutputValue(key, value);
         }
         // Fetch available output data
         Data outputData = _outputDatas.get(key);
         if (outputData == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_unknown_key, new Object[] {
                     __outputMode, EMFHelper.getText(key), getName()
             }));
         }
         // null value is a valid value
         if (value != null && (ClassHelper.isSubClass(value.getClass(), outputData.getType()) == false || outputData.getType().isInstance(value) == false)) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
                     outputData.getType().getName(), __outputMode, EMFHelper.getText(key), value.getClass().getName(), getName()
             }));
         }
         // Set output value
         outputData.setValue(value);
         // Set input value if it exists
         Data inputData = _inputDatas.get(key);
         if (inputData != null) {
             inputData.setValue(value);
         }
     }

     public Class<?> getInputValueType(Object key) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
         }
         // Looking for Parent Value Type if available
         Class<?> valueType = null;
         if (getParent() != null) {
             valueType = getParent().getInputValueType(key);
         }
         // Looking for local Value Type if necessary
         if (valueType == null) {
             Data inputData = _inputDatas.get(key);
             if (inputData != null) {
                 valueType = inputData.getType();
             }
         }
         return valueType;
     }

     public <R> R getInputValue(Object key, Class<R> clazz) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
         }
         // Looking for Parent Value if available
         R value = null;
         if (getParent() != null) {
             value = getParent().getInputValue(key, clazz);
         }
         // Looking for local value if necessary
         if (value == null) {
             Data inputData = _inputDatas.get(key);
             if (inputData != null) {
                 value = getValue(key, clazz, inputData, __inputMode);
             }
         }
         return value;
     }

     public Collection<T> getInputValueKeys() throws InvocationException {
         return _inputDatas.keySet();
     }

     public Class<?> getOutputValueType(Object key) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
         }
         // Looking for Parent Value Type if available
         Class<?> valueType = null;
         if (getParent() != null) {
             valueType = getParent().getOutputValueType(key);
         }
         // Looking for local Value Type if necessary
         if (valueType == null) {
             Data outputData = _outputDatas.get(key);
             if (outputData != null) {
                 valueType = outputData.getType();
             }
         }
         return valueType;
     }

     public <R> R getOutputValue(Object key, Class<R> clazz) throws InvocationException {
         // Usual Tests
         if (key == null) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
         }
         // Looking for Parent Value if available
         R value = null;
         if (getParent() != null) {
             value = getParent().getOutputValue(key, clazz);
         }
         // Looking for local value if necessary
         if (value == null) {
             Data outputData = _outputDatas.get(key);
             if (outputData != null) {
                 value = getValue(key, clazz, outputData, __outputMode);
             }
         }
         return value;
     }

     public Collection<T> getOutputValueKeys() throws InvocationException {
         return _outputDatas.keySet();
     }

     protected <R> R getValue(Object key, Class<R> clazz, Data data, String mode) throws InvocationException {
         if (data == null || data.getValue() == null) {
             return null;
         }
         if (ClassHelper.isSubClass(data.getValue().getClass(), clazz) == false) {
             throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
                     data.getType().getName(), mode, EMFHelper.getText(key), clazz.getName(), getName()
             }));
         }
         try {
             return clazz.cast(data.getValue());
         } catch (ClassCastException cce) {
             throw new InvocationException(cce);
         }
     }

 }
	/**
	*
	* Copyright (c) 2009-2010 Thales Corporate Services S.A.S.
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-v2.0.
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Thales Corporate Services S.A.S - initial API and implementation
	*
	*/
	package org.eclipse.egf.core.producer.context;

	import java.util.Collection;
	import java.util.HashMap;
	import java.util.Map;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.egf.common.helper.ClassHelper;
	import org.eclipse.egf.common.helper.EMFHelper;
	import org.eclipse.egf.core.producer.InvocationException;
	import org.eclipse.egf.core.producer.l10n.CoreProducerMessages;
	import org.eclipse.egf.core.session.ProjectBundleSession;
	import org.eclipse.osgi.util.NLS;
	import org.osgi.framework.Bundle;

	/**
	*
	* @author Xavier Maysonnave
	*
	*/
	public abstract class ProductionContext<P extends Object, T extends Object> implements IProductionContext<P, T> {

	public static final String __inputMode = "Input"; //$NON-NLS-1$

	public static final String __outputMode = "Output"; //$NON-NLS-1$

	protected class Data {

	private T _key;

	private Class<?> _clazz;

	private Object _value;

	private String _mode;

	public Data(T key, Class<?> clazz, Object value, String mode) throws InvocationException {
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, mode, getName()));
	}
	_key = key;
	if (clazz == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_class, new Object[] {
	mode, EMFHelper.getText(_key), getName()
	}));
	}
	_clazz = clazz;
	// null value is a valid value
	if (value != null && _clazz.isInstance(value) == false) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
	_clazz.getName(), mode, EMFHelper.getText(_key), value.getClass().getName(), getName()
	}));
	}
	_value = value;
	_mode = mode;
	}

	public Class<?> getType() {
	return _clazz;
	}

	public Object getValue() {
	return _value;
	}

	public void setValue(Object value) throws InvocationException {
	// null value is a valid value
	if (value != null && _clazz.isInstance(value) == false) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
	_clazz.getName(), _mode, EMFHelper.getText(_key), value.getClass().getName(), getName()
	}));
	}
	_value = value;
	}

	}

	protected String _name;

	protected ProjectBundleSession _projectBundleSession;

	protected P _element;

	protected IProductionContext<?, ?> _parent;

	protected final Map<T, Data> _inputDatas = new HashMap<T, Data>();

	protected final Map<T, Data> _outputDatas = new HashMap<T, Data>();

	public ProductionContext(ProjectBundleSession projectBundleSession, P element, String name) {
	Assert.isNotNull(projectBundleSession);
	Assert.isNotNull(element);
	Assert.isNotNull(name);
	_projectBundleSession = projectBundleSession;
	_element = element;
	_name = name;
	}

	public ProductionContext(IProductionContext<?, ?> parent, ProjectBundleSession projectBundleSession, P element, String name) {
	Assert.isNotNull(projectBundleSession);
	Assert.isNotNull(element);
	Assert.isNotNull(name);
	_parent = parent;
	_projectBundleSession = projectBundleSession;
	_element = element;
	_name = name;
	}

	public String getName() {
	return _name;
	}

	public P getElement() {
	return _element;
	}

	public IProductionContext<?, ?> getParent() {
	return _parent;
	}

	public Bundle getBundle(String id) throws InvocationException {
	try {
	return _projectBundleSession.getBundle(id);
	} catch (CoreException ce) {
	throw new InvocationException(ce);
	}
	}

	public void clear() {
	_inputDatas.clear();
	_outputDatas.clear();
	}

	public boolean isSetAtRuntime(Object key) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
	}
	// Looking for Parent
	if (getParent() != null) {
	return getParent().isSetAtRuntime(key);
	}
	return false;
	}

	public void addInputData(T key, Class<?> clazz, Object object, boolean check) throws InvocationException {
	if (_inputDatas.put(key, new Data(key, clazz, object, __inputMode)) != null) {
	if (check) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_non_unique_key, new Object[] {
	__inputMode, EMFHelper.getText(key), getName()
	}));
	}
	}
	}

	public void addOutputData(T key, Class<?> clazz, Object object, boolean check) throws InvocationException {
	if (_outputDatas.put(key, new Data(key, clazz, object, __outputMode)) != null) {
	if (check) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_non_unique_key, new Object[] {
	__outputMode, EMFHelper.getText(key), getName()
	}));
	}
	}
	}

	public void setOutputValue(Object key, Object value) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
	}
	// Propagate Value to parent if necessary
	if (getParent() != null) {
	getParent().setOutputValue(key, value);
	}
	// Fetch available output data
	Data outputData = _outputDatas.get(key);
	if (outputData == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_unknown_key, new Object[] {
	__outputMode, EMFHelper.getText(key), getName()
	}));
	}
	// null value is a valid value
	if (value != null && (ClassHelper.isSubClass(value.getClass(), outputData.getType()) == false \|\| outputData.getType().isInstance(value) == false)) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
	outputData.getType().getName(), __outputMode, EMFHelper.getText(key), value.getClass().getName(), getName()
	}));
	}
	// Set output value
	outputData.setValue(value);
	// Set input value if it exists
	Data inputData = _inputDatas.get(key);
	if (inputData != null) {
	inputData.setValue(value);
	}
	}

	public Class<?> getInputValueType(Object key) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
	}
	// Looking for Parent Value Type if available
	Class<?> valueType = null;
	if (getParent() != null) {
	valueType = getParent().getInputValueType(key);
	}
	// Looking for local Value Type if necessary
	if (valueType == null) {
	Data inputData = _inputDatas.get(key);
	if (inputData != null) {
	valueType = inputData.getType();
	}
	}
	return valueType;
	}

	public <R> R getInputValue(Object key, Class<R> clazz) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __inputMode, getName()));
	}
	// Looking for Parent Value if available
	R value = null;
	if (getParent() != null) {
	value = getParent().getInputValue(key, clazz);
	}
	// Looking for local value if necessary
	if (value == null) {
	Data inputData = _inputDatas.get(key);
	if (inputData != null) {
	value = getValue(key, clazz, inputData, __inputMode);
	}
	}
	return value;
	}

	public Collection<T> getInputValueKeys() throws InvocationException {
	return _inputDatas.keySet();
	}

	public Class<?> getOutputValueType(Object key) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
	}
	// Looking for Parent Value Type if available
	Class<?> valueType = null;
	if (getParent() != null) {
	valueType = getParent().getOutputValueType(key);
	}
	// Looking for local Value Type if necessary
	if (valueType == null) {
	Data outputData = _outputDatas.get(key);
	if (outputData != null) {
	valueType = outputData.getType();
	}
	}
	return valueType;
	}

	public <R> R getOutputValue(Object key, Class<R> clazz) throws InvocationException {
	// Usual Tests
	if (key == null) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_null_key, __outputMode, getName()));
	}
	// Looking for Parent Value if available
	R value = null;
	if (getParent() != null) {
	value = getParent().getOutputValue(key, clazz);
	}
	// Looking for local value if necessary
	if (value == null) {
	Data outputData = _outputDatas.get(key);
	if (outputData != null) {
	value = getValue(key, clazz, outputData, __outputMode);
	}
	}
	return value;
	}

	public Collection<T> getOutputValueKeys() throws InvocationException {
	return _outputDatas.keySet();
	}

	protected <R> R getValue(Object key, Class<R> clazz, Data data, String mode) throws InvocationException {
	if (data == null \|\| data.getValue() == null) {
	return null;
	}
	if (ClassHelper.isSubClass(data.getValue().getClass(), clazz) == false) {
	throw new InvocationException(NLS.bind(CoreProducerMessages.ProductionContext_wrong_type, new Object[] {
	data.getType().getName(), mode, EMFHelper.getText(key), clazz.getName(), getName()
	}));
	}
	try {
	return clazz.cast(data.getValue());
	} catch (ClassCastException cce) {
	throw new InvocationException(cce);
	}
	}

	}