[New] Implemented Add* and RemoveParameterService and Command

src/main/java/li/strolch/command/parameter/AddParameterCommand.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
+ * 
+ * Licensed 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 li.strolch.command.parameter;
+
+import java.text.MessageFormat;
+
+import ch.eitchnet.utils.dbc.DBC;
+import li.strolch.agent.api.ComponentContainer;
+import li.strolch.model.ParameterizedElement;
+import li.strolch.model.parameter.Parameter;
+import li.strolch.persistence.api.StrolchPersistenceException;
+import li.strolch.persistence.api.StrolchTransaction;
+import li.strolch.service.api.Command;
+
+/**
+ * @author Robert von Burg <eitch@eitchnet.ch>
+ */
+public class AddParameterCommand extends Command {
+
+	private ParameterizedElement element;
+	private Parameter<?> parameter;
+
+	/**
+	 * @param container
+	 * @param tx
+	 */
+	public AddParameterCommand(ComponentContainer container, StrolchTransaction tx) {
+		super(container, tx);
+	}
+
+	/**
+	 * @param element
+	 *            the element to set
+	 */
+	public void setElement(ParameterizedElement element) {
+		this.element = element;
+	}
+
+	/**
+	 * @param parameter
+	 *            the parameter to set
+	 */
+	public void setParameter(Parameter<?> parameter) {
+		this.parameter = parameter;
+	}
+
+	@Override
+	public void doCommand() {
+		DBC.PRE.assertNotNull("Element may not be null!", element);
+		DBC.PRE.assertNotNull("Parameter may not be null!", parameter);
+
+		if (element.hasParameter(this.parameter.getId())) {
+			String msg = "The Parameter {0} already exists on element {1}";
+			msg = MessageFormat.format(msg, parameter.getId(), element.getLocator());
+			throw new StrolchPersistenceException(msg);
+		}
+
+		this.element.addParameter(parameter);
+	}
+
+}

src/main/java/li/strolch/command/parameter/RemoveParameterCommand.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
+ * 
+ * Licensed 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 li.strolch.command.parameter;
+
+import java.text.MessageFormat;
+
+import li.strolch.agent.api.ComponentContainer;
+import li.strolch.model.ParameterizedElement;
+import li.strolch.persistence.api.StrolchPersistenceException;
+import li.strolch.persistence.api.StrolchTransaction;
+import li.strolch.service.api.Command;
+import ch.eitchnet.utils.dbc.DBC;
+
+/**
+ * @author Robert von Burg <eitch@eitchnet.ch>
+ */
+public class RemoveParameterCommand extends Command {
+
+	private ParameterizedElement element;
+	private String parameterId;
+
+	/**
+	 * @param container
+	 * @param tx
+	 */
+	public RemoveParameterCommand(ComponentContainer container, StrolchTransaction tx) {
+		super(container, tx);
+	}
+
+	/**
+	 * @param element
+	 *            the element to set
+	 */
+	public void setElement(ParameterizedElement element) {
+		this.element = element;
+	}
+
+	/**
+	 * @param parameterId
+	 *            the parameterId to set
+	 */
+	public void setParameterId(String parameterId) {
+		this.parameterId = parameterId;
+	}
+
+	@Override
+	public void doCommand() {
+		DBC.PRE.assertNotNull("Element may not be null!", element);
+		DBC.PRE.assertNotEmpty("ParameterId must be set!", parameterId);
+
+		if (!element.hasParameter(this.parameterId)) {
+			String msg = "The Parameter {0} can not be removed as it does not exist on element {1}";
+			msg = MessageFormat.format(msg, parameterId, element.getLocator());
+			throw new StrolchPersistenceException(msg);
+		}
+
+		this.element.removeParameter(parameterId);
+	}
+}

src/main/java/li/strolch/service/parameter/AddParameterService.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
+ * 
+ * Licensed 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 li.strolch.service.parameter;
+
+import li.strolch.command.parameter.AddParameterCommand;
+import li.strolch.model.Locator;
+import li.strolch.model.ParameterizedElement;
+import li.strolch.model.parameter.Parameter;
+import li.strolch.persistence.api.StrolchTransaction;
+import li.strolch.service.api.AbstractService;
+import li.strolch.service.api.ServiceArgument;
+import li.strolch.service.api.ServiceResult;
+
+/**
+ * @author Robert von Burg <eitch@eitchnet.ch>
+ */
+public class AddParameterService extends AbstractService<AddParameterService.AddParameterArg, ServiceResult> {
+
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected ServiceResult getResultInstance() {
+		return new ServiceResult();
+	}
+
+	@Override
+	protected ServiceResult internalDoService(AddParameterArg arg) {
+
+		try (StrolchTransaction tx = openTx(arg.realm)) {
+
+			ParameterizedElement element = tx.findElement(arg.locator);
+
+			AddParameterCommand command = new AddParameterCommand(getContainer(), tx);
+			command.setElement(element);
+			command.setParameter(arg.parameter);
+			command.doCommand();
+		}
+
+		return ServiceResult.success();
+	}
+
+	public static class AddParameterArg extends ServiceArgument {
+		private static final long serialVersionUID = 1L;
+		public Locator locator;
+		public Parameter<?> parameter;
+	}
+}

src/main/java/li/strolch/service/parameter/RemoveParameterService.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
+ * 
+ * Licensed 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 li.strolch.service.parameter;
+
+import li.strolch.command.parameter.RemoveParameterCommand;
+import li.strolch.model.Locator;
+import li.strolch.model.ParameterizedElement;
+import li.strolch.persistence.api.StrolchTransaction;
+import li.strolch.service.api.AbstractService;
+import li.strolch.service.api.ServiceArgument;
+import li.strolch.service.api.ServiceResult;
+
+/**
+ * @author Robert von Burg <eitch@eitchnet.ch>
+ */
+public class RemoveParameterService extends AbstractService<RemoveParameterService.AddParameterArg, ServiceResult> {
+
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected ServiceResult getResultInstance() {
+		return new ServiceResult();
+	}
+
+	@Override
+	protected ServiceResult internalDoService(AddParameterArg arg) {
+
+		try (StrolchTransaction tx = openTx(arg.realm)) {
+
+			ParameterizedElement element = tx.findElement(arg.locator);
+
+			RemoveParameterCommand command = new RemoveParameterCommand(getContainer(), tx);
+			command.setElement(element);
+			command.setParameterId(arg.parameterId);
+			command.doCommand();
+		}
+
+		return ServiceResult.success();
+	}
+
+	public static class AddParameterArg extends ServiceArgument {
+		private static final long serialVersionUID = 1L;
+		public Locator locator;
+		public String parameterId;
+	}
+}