X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=server%2Fruntime%2Forg.argeo.server.jcr%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fjcr%2FBeanNodeMapper.java;fp=server%2Fruntime%2Forg.argeo.server.jcr%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fjcr%2FBeanNodeMapper.java;h=0000000000000000000000000000000000000000;hb=149023e5969377045847bbecf24b0898b18a67a9;hp=63406999634b778bba41656317bd4bcda13792ba;hpb=832bee8656e427eef8580b6d24bfdcf4526fce95;p=lgpl%2Fargeo-commons.git diff --git a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/BeanNodeMapper.java b/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/BeanNodeMapper.java deleted file mode 100644 index 634069996..000000000 --- a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/BeanNodeMapper.java +++ /dev/null @@ -1,644 +0,0 @@ -/* - * Copyright (C) 2010 Mathieu Baudier - * - * 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.jcr; - -import java.beans.PropertyDescriptor; -import java.io.InputStream; -import java.util.ArrayList; -import java.util.Calendar; -import java.util.Date; -import java.util.GregorianCalendar; -import java.util.HashMap; -import java.util.List; -import java.util.Map; -import java.util.StringTokenizer; - -import javax.jcr.ItemNotFoundException; -import javax.jcr.Node; -import javax.jcr.NodeIterator; -import javax.jcr.Property; -import javax.jcr.PropertyIterator; -import javax.jcr.PropertyType; -import javax.jcr.RepositoryException; -import javax.jcr.Session; -import javax.jcr.Value; -import javax.jcr.ValueFactory; - -import org.apache.commons.logging.Log; -import org.apache.commons.logging.LogFactory; -import org.argeo.ArgeoException; -import org.springframework.beans.BeanWrapper; -import org.springframework.beans.BeanWrapperImpl; - -public class BeanNodeMapper implements NodeMapper { - private final static Log log = LogFactory.getLog(BeanNodeMapper.class); - - private final static String NODE_VALUE = "value"; - - // private String keyNode = "bean:key"; - private String uuidProperty = "uuid"; - private String classProperty = "class"; - - private Boolean versioning = false; - private Boolean strictUuidReference = false; - - // TODO define a primaryNodeType Strategy - private String primaryNodeType = null; - - private ClassLoader classLoader = getClass().getClassLoader(); - - private NodeMapperProvider nodeMapperProvider; - - /** - * exposed method to retrieve a bean from a node - */ - public Object load(Node node) { - try { - if (nodeMapperProvider != null) { - NodeMapper nodeMapper = nodeMapperProvider.findNodeMapper(node); - if (nodeMapper != this) { - return nodeMapper.load(node); - } - } - return nodeToBean(node); - } catch (RepositoryException e) { - throw new ArgeoException("Cannot load object from node " + node, e); - } - } - - /** Update an existing node with an object */ - public void update(Node node, Object obj) { - try { - if (nodeMapperProvider != null) { - - NodeMapper nodeMapper = nodeMapperProvider.findNodeMapper(node); - if (nodeMapper != this) { - nodeMapper.update(node, obj); - } else - beanToNode(createBeanWrapper(obj), node); - } else - beanToNode(createBeanWrapper(obj), node); - } catch (RepositoryException e) { - throw new ArgeoException("Cannot update node " + node + " with " - + obj, e); - } - } - - /** - * if no storage path is given; we use canonical path - * - * @see this.storagePath() - */ - public Node save(Session session, Object obj) { - return save(session, storagePath(obj), obj); - } - - /** - * Create a new node to store an object. If the parentNode doesn't exist, it - * is created - * - * the primaryNodeType may be initialized before - */ - public Node save(Session session, String path, Object obj) { - try { - final Node node; - String parentPath = JcrUtils.parentPath(path); - // find or create parent node - Node parentNode; - if (session.itemExists(path)) - parentNode = (Node) session.getItem(parentPath); - else { - parentNode = JcrUtils.mkdirs(session, parentPath, null, - versioning); - } - // create node - - if (primaryNodeType != null) - node = parentNode.addNode(JcrUtils.lastPathElement(path), - primaryNodeType); - else - node = parentNode.addNode(JcrUtils.lastPathElement(path)); - - // Check specific cases - if (nodeMapperProvider != null) { - NodeMapper nodeMapper = nodeMapperProvider.findNodeMapper(node); - if (nodeMapper != this) { - nodeMapper.update(node, obj); - return node; - } - } - update(node, obj); - return node; - } catch (ArgeoException e) { - throw e; - } catch (Exception e) { - throw new ArgeoException("Cannot save or update " + obj + " under " - + path, e); - } - } - - /** - * Parse the FQN of a class to string with '/' delimiters Prefix the - * returned string with "/objects/" - */ - public String storagePath(Object obj) { - String clss = obj.getClass().getName(); - StringBuffer buf = new StringBuffer("/objects/"); - StringTokenizer st = new StringTokenizer(clss, "."); - while (st.hasMoreTokens()) { - buf.append(st.nextToken()).append('/'); - } - buf.append(obj.toString()); - return buf.toString(); - } - - @SuppressWarnings("unchecked") - /** - * Transforms a node into an object of the class defined by classProperty Property - */ - protected Object nodeToBean(Node node) throws RepositoryException { - if (log.isTraceEnabled()) - log.trace("Load " + node); - - try { - String clssName = node.getProperty(classProperty).getValue() - .getString(); - - BeanWrapper beanWrapper = createBeanWrapper(loadClass(clssName)); - - // process properties - PropertyIterator propIt = node.getProperties(); - props: while (propIt.hasNext()) { - Property prop = propIt.nextProperty(); - if (!beanWrapper.isWritableProperty(prop.getName())) - continue props; - - PropertyDescriptor pd = beanWrapper.getPropertyDescriptor(prop - .getName()); - Class propClass = pd.getPropertyType(); - - if (log.isTraceEnabled()) - log.trace("Load " + prop + ", propClass=" + propClass - + ", property descriptor=" + pd); - - // primitive list - if (propClass != null && List.class.isAssignableFrom(propClass)) { - List lst = new ArrayList(); - Class valuesClass = classFromProperty(prop); - if (valuesClass != null) - for (Value value : prop.getValues()) { - lst.add(asObject(value, valuesClass)); - } - continue props; - } - - // Case of other type of property accepted by jcr - // Long, Double, String, Binary, Date, Boolean, Name - Object value = asObject(prop.getValue(), pd.getPropertyType()); - if (value != null) - beanWrapper.setPropertyValue(prop.getName(), value); - } - - // process children nodes - NodeIterator nodeIt = node.getNodes(); - nodes: while (nodeIt.hasNext()) { - Node childNode = nodeIt.nextNode(); - String name = childNode.getName(); - if (!beanWrapper.isWritableProperty(name)) - continue nodes; - - PropertyDescriptor pd = beanWrapper.getPropertyDescriptor(name); - Class propClass = pd.getPropertyType(); - - // objects list - if (propClass != null && List.class.isAssignableFrom(propClass)) { - String lstClass = childNode.getProperty(classProperty) - .getString(); - List lst; - try { - lst = (List) loadClass(lstClass).newInstance(); - } catch (Exception e) { - lst = new ArrayList(); - } - - if (childNode.hasNodes()) { - // Look for children nodes - NodeIterator valuesIt = childNode.getNodes(); - while (valuesIt.hasNext()) { - Node lstValueNode = valuesIt.nextNode(); - Object lstValue = nodeToBean(lstValueNode); - lst.add(lstValue); - } - } else { - // look for a property with the same name which will - // provide - // primitives - Property childProp = childNode.getProperty(childNode - .getName()); - Class valuesClass = classFromProperty(childProp); - if (valuesClass != null) - if (childProp.getDefinition().isMultiple()) - for (Value value : childProp.getValues()) { - lst.add(asObject(value, valuesClass)); - } - else - lst.add(asObject(childProp.getValue(), - valuesClass)); - } - beanWrapper.setPropertyValue(name, lst); - continue nodes; - } - - // objects map - if (propClass != null && Map.class.isAssignableFrom(propClass)) { - String mapClass = childNode.getProperty(classProperty) - .getString(); - Map map; - try { - map = (Map) loadClass(mapClass) - .newInstance(); - } catch (Exception e) { - map = new HashMap(); - } - - // properties - PropertyIterator keysPropIt = childNode.getProperties(); - keyProps: while (keysPropIt.hasNext()) { - Property keyProp = keysPropIt.nextProperty(); - // FIXME: use property editor - String key = keyProp.getName(); - if (classProperty.equals(key)) - continue keyProps; - - Class keyPropClass = classFromProperty(keyProp); - if (keyPropClass != null) { - Object mapValue = asObject(keyProp.getValue(), - keyPropClass); - map.put(key, mapValue); - } - } - - // node - NodeIterator keysIt = childNode.getNodes(); - while (keysIt.hasNext()) { - Node mapValueNode = keysIt.nextNode(); - // FIXME: use property editor - Object key = mapValueNode.getName(); - - Object mapValue = nodeToBean(mapValueNode); - - map.put(key, mapValue); - } - beanWrapper.setPropertyValue(name, map); - continue nodes; - } - - // default - Object value = nodeToBean(childNode); - beanWrapper.setPropertyValue(name, value); - - } - return beanWrapper.getWrappedInstance(); - } catch (Exception e) { - throw new ArgeoException("Cannot map node " + node, e); - } - } - - /** - * Transforms an object to the specified jcr Node in order to persist it. - * - * @param beanWrapper - * @param node - * @throws RepositoryException - */ - protected void beanToNode(BeanWrapper beanWrapper, Node node) - throws RepositoryException { - properties: for (PropertyDescriptor pd : beanWrapper - .getPropertyDescriptors()) { - String name = pd.getName(); - if (!beanWrapper.isReadableProperty(name)) - continue properties;// skip - - Object value = beanWrapper.getPropertyValue(name); - if (value == null) { - // remove values when updating - if (node.hasProperty(name)) - node.setProperty(name, (Value) null); - if (node.hasNode(name)) - node.getNode(name).remove(); - - continue properties; - } - - // if (uuidProperty != null && uuidProperty.equals(name)) { - // // node.addMixin(ArgeoJcrConstants.MIX_REFERENCEABLE); - // node.setProperty(ArgeoJcrConstants.JCR_UUID, value.toString()); - // continue properties; - // } - - if ("class".equals(name)) { - if (classProperty != null) { - node.setProperty(classProperty, ((Class) value) - .getName()); - // TODO: store a class hierarchy? - } - continue properties; - } - - // Some bean reference other classes. We must deal with this case - if (value instanceof Class) { - node.setProperty(name, ((Class) value).getName()); - continue properties; - } - - Value val = asValue(node.getSession(), value); - if (val != null) { - node.setProperty(name, val); - continue properties; - } - - if (value instanceof List) { - List lst = (List) value; - addList(node, name, lst); - continue properties; - } - - if (value instanceof Map) { - Map map = (Map) value; - addMap(node, name, map); - continue properties; - } - - BeanWrapper child = createBeanWrapper(value); - // TODO: delegate to another mapper - - // TODO: deal with references - // Node childNode = findChildReference(session, child); - // if (childNode != null) { - // node.setProperty(name, childNode); - // continue properties; - // } - - // default case (recursive) - if (node.hasNode(name)) {// update - // TODO: optimize - node.getNode(name).remove(); - } - Node childNode = node.addNode(name); - beanToNode(child, childNode); - } - } - - /** - * Process specific case of list - * - * @param node - * @param name - * @param lst - * @throws RepositoryException - */ - protected void addList(Node node, String name, List lst) - throws RepositoryException { - if (node.hasNode(name)) {// update - // TODO: optimize - node.getNode(name).remove(); - } - - Node listNode = node.addNode(name); - listNode.setProperty(classProperty, lst.getClass().getName()); - Value[] values = new Value[lst.size()]; - boolean atLeastOneSet = false; - for (int i = 0; i < lst.size(); i++) { - Object lstValue = lst.get(i); - values[i] = asValue(node.getSession(), lstValue); - if (values[i] != null) { - atLeastOneSet = true; - } else { - Node childNode = findChildReference(node.getSession(), - createBeanWrapper(lstValue)); - if (childNode != null) { - values[i] = node.getSession().getValueFactory() - .createValue(childNode); - atLeastOneSet = true; - } - } - } - - // will be either properties or nodes, not both - if (!atLeastOneSet && lst.size() != 0) { - for (Object lstValue : lst) { - Node childNode = listNode.addNode(NODE_VALUE); - beanToNode(createBeanWrapper(lstValue), childNode); - } - } else { - listNode.setProperty(name, values); - } - } - - /** - * Process specific case of maps. - * - * @param node - * @param name - * @param map - * @throws RepositoryException - */ - protected void addMap(Node node, String name, Map map) - throws RepositoryException { - if (node.hasNode(name)) {// update - // TODO: optimize - node.getNode(name).remove(); - } - - Node mapNode = node.addNode(name); - mapNode.setProperty(classProperty, map.getClass().getName()); - for (Object key : map.keySet()) { - Object mapValue = map.get(key); - // PropertyEditor pe = beanWrapper.findCustomEditor(key.getClass(), - // null); - String keyStr; - // if (pe == null) { - if (key instanceof CharSequence) - keyStr = key.toString(); - else - throw new ArgeoException( - "Cannot find property editor for class " - + key.getClass()); - // } else { - // pe.setValue(key); - // keyStr = pe.getAsText(); - // } - // TODO: check string format - - Value mapVal = asValue(node.getSession(), mapValue); - if (mapVal != null) - mapNode.setProperty(keyStr, mapVal); - else { - Node entryNode = mapNode.addNode(keyStr); - beanToNode(createBeanWrapper(mapValue), entryNode); - } - - } - - } - - protected BeanWrapper createBeanWrapper(Object obj) { - return new BeanWrapperImpl(obj); - } - - protected BeanWrapper createBeanWrapper(Class clss) { - return new BeanWrapperImpl(clss); - } - - /** Returns null if value cannot be found */ - protected Value asValue(Session session, Object value) - throws RepositoryException { - ValueFactory valueFactory = session.getValueFactory(); - if (value instanceof Integer) - return valueFactory.createValue((Integer) value); - else if (value instanceof Long) - return valueFactory.createValue((Long) value); - else if (value instanceof Float) - return valueFactory.createValue((Float) value); - else if (value instanceof Double) - return valueFactory.createValue((Double) value); - else if (value instanceof Boolean) - return valueFactory.createValue((Boolean) value); - else if (value instanceof Calendar) - return valueFactory.createValue((Calendar) value); - else if (value instanceof Date) { - Calendar cal = new GregorianCalendar(); - cal.setTime((Date) value); - return valueFactory.createValue(cal); - } else if (value instanceof CharSequence) - return valueFactory.createValue(value.toString()); - else if (value instanceof InputStream) - return valueFactory.createValue((InputStream) value); - else - return null; - } - - protected Class classFromProperty(Property property) - throws RepositoryException { - switch (property.getType()) { - case PropertyType.LONG: - return Long.class; - case PropertyType.DOUBLE: - return Double.class; - case PropertyType.STRING: - return String.class; - case PropertyType.BOOLEAN: - return Boolean.class; - case PropertyType.DATE: - return Calendar.class; - case PropertyType.NAME: - return null; - default: - throw new ArgeoException("Cannot find class for property " - + property + ", type=" - + PropertyType.nameFromValue(property.getType())); - } - } - - protected Object asObject(Value value, Class propClass) - throws RepositoryException { - if (propClass.equals(Integer.class)) - return (int) value.getLong(); - else if (propClass.equals(Long.class)) - return value.getLong(); - else if (propClass.equals(Float.class)) - return (float) value.getDouble(); - else if (propClass.equals(Double.class)) - return value.getDouble(); - else if (propClass.equals(Boolean.class)) - return value.getBoolean(); - else if (CharSequence.class.isAssignableFrom(propClass)) - return value.getString(); - else if (InputStream.class.isAssignableFrom(propClass)) - return value.getStream(); - else if (Calendar.class.isAssignableFrom(propClass)) - return value.getDate(); - else if (Date.class.isAssignableFrom(propClass)) - return value.getDate().getTime(); - else - return null; - } - - protected Node findChildReference(Session session, BeanWrapper child) - throws RepositoryException { - if (child.isReadableProperty(uuidProperty)) { - String childUuid = child.getPropertyValue(uuidProperty).toString(); - try { - return session.getNodeByUUID(childUuid); - } catch (ItemNotFoundException e) { - if (strictUuidReference) - throw new ArgeoException("No node found with uuid " - + childUuid, e); - } - } - return null; - } - - protected Class loadClass(String name) { - // log.debug("Class loader: " + classLoader); - try { - return classLoader.loadClass(name); - } catch (ClassNotFoundException e) { - throw new ArgeoException("Cannot load class " + name, e); - } - } - - protected String propertyName(String name) { - return name; - } - - public void setVersioning(Boolean versioning) { - this.versioning = versioning; - } - - public void setUuidProperty(String uuidProperty) { - this.uuidProperty = uuidProperty; - } - - public void setClassProperty(String classProperty) { - this.classProperty = classProperty; - } - - public void setStrictUuidReference(Boolean strictUuidReference) { - this.strictUuidReference = strictUuidReference; - } - - public void setPrimaryNodeType(String primaryNodeType) { - this.primaryNodeType = primaryNodeType; - } - - public void setClassLoader(ClassLoader classLoader) { - this.classLoader = classLoader; - } - - public void setNodeMapperProvider(NodeMapperProvider nodeMapperProvider) { - this.nodeMapperProvider = nodeMapperProvider; - } - - public String getPrimaryNodeType() { - return this.primaryNodeType; - } - - public String getClassProperty() { - return this.classProperty; - } -}