X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.slc.spring%2Fsrc%2Forg%2Fargeo%2Fslc%2Fcore%2Fexecution%2FDefaultExecutionSpec.java;fp=org.argeo.slc.spring%2Fsrc%2Forg%2Fargeo%2Fslc%2Fcore%2Fexecution%2FDefaultExecutionSpec.java;h=2bce125772818ffb1fa48f7e7bc340bb65c33869;hb=e14154d2baba78852915304d51cbb56bed1d3d3e;hp=0000000000000000000000000000000000000000;hpb=aba0f1135009d9014c42368ecea338088e6d2be1;p=gpl%2Fargeo-slc.git

diff --git a/org.argeo.slc.spring/src/org/argeo/slc/core/execution/DefaultExecutionSpec.java b/org.argeo.slc.spring/src/org/argeo/slc/core/execution/DefaultExecutionSpec.java
new file mode 100644
index 000000000..2bce12577
--- /dev/null
+++ b/org.argeo.slc.spring/src/org/argeo/slc/core/execution/DefaultExecutionSpec.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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 org.argeo.slc.core.execution;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.execution.ExecutionSpec;
+import org.argeo.slc.execution.ExecutionSpecAttribute;
+import org.springframework.beans.factory.BeanNameAware;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.context.ConfigurableApplicationContext;
+
+/** Spring based implementation of execution specifications. */
+public class DefaultExecutionSpec implements ExecutionSpec, BeanNameAware,
+		ApplicationContextAware, InitializingBean, Serializable {
+	private static final long serialVersionUID = 5159882223926926539L;
+	private final static Log log = LogFactory
+			.getLog(DefaultExecutionSpec.class);
+	private transient ApplicationContext applicationContext;
+
+	private String description;
+	private Map<String, ExecutionSpecAttribute> attributes = new HashMap<String, ExecutionSpecAttribute>();
+
+	private String name = INTERNAL_NAME;
+
+	public Map<String, ExecutionSpecAttribute> getAttributes() {
+		return attributes;
+	}
+
+	public void setAttributes(Map<String, ExecutionSpecAttribute> attributes) {
+		this.attributes = attributes;
+	}
+
+	public void setBeanName(String name) {
+		this.name = name;
+	}
+
+	/**
+	 * The Spring bean name (only relevant for specs declared has high-level
+	 * beans)
+	 */
+	public String getName() {
+		return name;
+	}
+
+	public boolean equals(Object obj) {
+		return ((ExecutionSpec) obj).getName().equals(name);
+	}
+
+	/**
+	 * The Spring bean description (only relevant for specs declared has
+	 * high-level beans)
+	 */
+	public String getDescription() {
+		return description;
+	}
+
+	private ConfigurableListableBeanFactory getBeanFactory() {
+		return ((ConfigurableApplicationContext) applicationContext)
+				.getBeanFactory();
+	}
+
+	public void setApplicationContext(ApplicationContext applicationContext) {
+		this.applicationContext = applicationContext;
+	}
+
+	public void afterPropertiesSet() throws Exception {
+		if (description == null) {
+			try {
+				description = getBeanFactory().getBeanDefinition(name)
+						.getDescription();
+			} catch (NoSuchBeanDefinitionException e) {
+				// silent
+			}
+		}
+
+		for (String key : attributes.keySet()) {
+			ExecutionSpecAttribute attr = attributes.get(key);
+			if (attr instanceof RefSpecAttribute) {
+				RefSpecAttribute rsa = (RefSpecAttribute) attr;
+				if (rsa.getChoices() == null) {
+					List<RefValueChoice> choices = buildRefValueChoices(rsa);
+					rsa.setChoices(choices);
+				}
+				if (log.isTraceEnabled())
+					log.debug("Spec attr " + key + " has "
+							+ rsa.getChoices().size() + " choices");
+			}
+		}
+	}
+
+	/**
+	 * Generates a list of ref value choices based on the bean available in the
+	 * application ocntext.
+	 */
+	protected List<RefValueChoice> buildRefValueChoices(RefSpecAttribute rsa) {
+		List<RefValueChoice> choices = new ArrayList<RefValueChoice>();
+		if (applicationContext == null) {
+			log.warn("No application context declared,"
+					+ " cannot scan ref value choices.");
+			return choices;
+		}
+
+		beanNames: for (String beanName : getBeanFactory().getBeanNamesForType(
+				rsa.getTargetClass(), true, false)) {
+
+			// Since Spring 3, systemProperties is implicitly defined but has no
+			// bean definition
+			if (beanName.equals("systemProperties"))
+				continue beanNames;
+
+			BeanDefinition bd = getBeanFactory().getBeanDefinition(beanName);
+			RefValueChoice choice = new RefValueChoice();
+			choice.setName(beanName);
+			choice.setDescription(bd.getDescription());
+			if (log.isTraceEnabled())
+				log.debug("Found choice " + beanName + " for " + rsa);
+
+			choices.add(choice);
+
+		}
+		return choices;
+	}
+
+}