| /* |
| * 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.sling.jmx.provider.impl; |
| |
| import java.lang.reflect.Array; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.NoSuchElementException; |
| import java.util.Set; |
| import java.util.TreeMap; |
| |
| import javax.management.MBeanAttributeInfo; |
| import javax.management.openmbean.CompositeData; |
| import javax.management.openmbean.CompositeType; |
| import javax.management.openmbean.TabularData; |
| import javax.management.openmbean.TabularType; |
| |
| import org.apache.sling.api.resource.AbstractResource; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ResourceMetadata; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.apache.sling.api.resource.ValueMap; |
| import org.apache.sling.api.wrappers.DeepReadValueMapDecorator; |
| import org.apache.sling.api.wrappers.ValueMapDecorator; |
| |
| public class AttributeResource extends AbstractResource { |
| |
| private final String path; |
| |
| private final ResourceResolver resourceResolver; |
| |
| private final ResourceMetadata metadata = new ResourceMetadata(); |
| |
| private final MBeanAttributeInfo info; |
| |
| private final Object attrValue; |
| |
| private final AttributesResource parent; |
| |
| public AttributeResource(final ResourceResolver resolver, |
| final String path, |
| final MBeanAttributeInfo info, |
| final Object value, |
| final AttributesResource parent) { |
| this.resourceResolver = resolver; |
| this.path = path; |
| this.info = info; |
| this.attrValue = value; |
| this.parent = parent; |
| } |
| |
| @Override |
| public Resource getParent() { |
| return this.parent; |
| } |
| |
| /** |
| * @see org.apache.sling.api.resource.Resource#getPath() |
| */ |
| public String getPath() { |
| return this.path; |
| } |
| |
| /** |
| * @see org.apache.sling.api.resource.Resource#getResourceType() |
| */ |
| public String getResourceType() { |
| return Constants.TYPE_ATTRIBUTE; |
| } |
| |
| /** |
| * @see org.apache.sling.api.resource.Resource#getResourceSuperType() |
| */ |
| public String getResourceSuperType() { |
| return null; |
| } |
| |
| /** |
| * @see org.apache.sling.api.resource.Resource#getResourceMetadata() |
| */ |
| public ResourceMetadata getResourceMetadata() { |
| return metadata; |
| } |
| |
| /** |
| * @see org.apache.sling.api.resource.Resource#getResourceResolver() |
| */ |
| public ResourceResolver getResourceResolver() { |
| return this.resourceResolver; |
| } |
| |
| @Override |
| public <AdapterType> AdapterType adaptTo(final Class<AdapterType> type) { |
| if ( type == ValueMap.class || type == Map.class ) { |
| final Map<String, Object> propMap = this.getPropertiesMap(); |
| return (AdapterType) new DeepReadValueMapDecorator(this, new ValueMapDecorator(propMap)); |
| } |
| return super.adaptTo(type); |
| } |
| |
| private Map<String, Object> getPropertiesMap() { |
| final Map<String, Object> result = new HashMap<String, Object>(); |
| result.put(Constants.PROP_RESOURCE_TYPE, this.getResourceType()); |
| if ( this.getResourceSuperType() != null ) { |
| result.put(Constants.PROP_RESOURCE_SUPER_TYPE, this.getResourceSuperType()); |
| } |
| |
| if ( info.getDescription() != null ) { |
| result.put(Constants.PROP_DESCRIPTION, info.getDescription()); |
| } |
| result.put(Constants.PROP_TYPE, info.getType()); |
| |
| try { |
| final Object value = attrValue; |
| if ( value != null ) { |
| if ( value.getClass().isArray() ) { |
| final int length = Array.getLength(value); |
| final Object[] values = new Object[length]; |
| for (int i = 0; i < length; i ++) { |
| final Object o = Array.get(value, i); |
| values[i] = convert(o); |
| } |
| result.put(Constants.PROP_VALUE, values); |
| } else if (value instanceof TabularData) { |
| // Nothing to do, value is child resource |
| } else if (value instanceof CompositeData) { |
| // Nothing to do, value is child resource |
| } else { |
| result.put(Constants.PROP_VALUE, convert(value)); |
| } |
| } |
| } catch (final Exception ignore) { |
| // ignore, but put this as info |
| result.put("mbean:exception", ignore.getMessage()); |
| } |
| return result; |
| } |
| |
| private Object convert(final Object value) { |
| if ( value == null ) { |
| return ""; |
| } else if ( value instanceof String ) { |
| return value; |
| } else if ( value instanceof Number ) { |
| return value; |
| } else if ( value instanceof Boolean ) { |
| return value; |
| } else if ( value instanceof Character ) { |
| return value; |
| } |
| return value.toString(); |
| } |
| |
| public Resource getChildResource(final String subPath) { |
| final Map<String, Object> childStructure = this.convertData(); |
| if ( childStructure != null ) { |
| final String[] segments = subPath.split("/"); |
| Map<String, Object> current = childStructure; |
| for(final String path : segments) { |
| final Object child = current.get(path); |
| if ( child == null ) { |
| return null; |
| } |
| if ( !(child instanceof Map) ) { |
| return null; |
| } |
| current = (Map<String, Object>)child; |
| } |
| |
| return new MapResource(this.getResourceResolver(), this.getPath(), current, this); |
| } |
| return null; |
| } |
| |
| private volatile Map<String, Object> convertedValue; |
| |
| private Map<String, Object> convertData() { |
| if ( convertedValue == null ) { |
| if ( attrValue instanceof TabularData ) { |
| convertedValue = convertObject((TabularData)attrValue); |
| } else if ( attrValue instanceof CompositeData ) { |
| convertedValue = convertObject((CompositeData)attrValue); |
| } |
| } |
| return convertedValue; |
| } |
| |
| private Map<String, Object> convertObject(final TabularData td) { |
| final TabularType type = td.getTabularType(); |
| final Map<String, Object> result = new HashMap<String, Object>(); |
| result.put(Constants.PROP_RESOURCE_SUPER_TYPE, Constants.TYPE_ATTRIBUTES); |
| result.put(Constants.PROP_RESOURCE_TYPE, type.getTypeName()); |
| |
| final Map<String, Map<String, Object>> rows = new LinkedHashMap<String, Map<String, Object>>(); |
| int rowIndex = 1; |
| @SuppressWarnings("unchecked") |
| final List<CompositeData> values = new ArrayList<CompositeData>((Collection<CompositeData>)td.values()); |
| Collections.sort(values, new Comparator<CompositeData>() { |
| |
| public int compare(final CompositeData o1, final CompositeData o2) { |
| for(final String name : type.getIndexNames()) { |
| final Object value1 = o1.get(name); |
| final Object value2 = o2.get(name); |
| final int result; |
| if ( value1 instanceof Comparable ) { |
| result = ((Comparable)value1).compareTo(value2); |
| } else { |
| result = value1.toString().compareTo(value2.toString()); |
| } |
| if ( result != 0 ) { |
| return result; |
| } |
| } |
| return 0; |
| } |
| |
| }); |
| for(final CompositeData data : values) { |
| rows.put(String.valueOf(rowIndex), convertObject(data)); |
| rowIndex++; |
| } |
| result.put(Constants.RSRC_VALUE, rows); |
| |
| return result; |
| } |
| |
| private Map<String, Object> convertObject(final CompositeData cd) { |
| final CompositeType type = cd.getCompositeType(); |
| final Map<String, Object> result = new HashMap<String, Object>(); |
| result.put(Constants.PROP_RESOURCE_SUPER_TYPE, Constants.TYPE_ATTRIBUTES); |
| result.put(Constants.PROP_RESOURCE_TYPE, type.getTypeName()); |
| |
| final Map<String, Object> attrMap = new TreeMap<String, Object>(); |
| attrMap.put(Constants.PROP_RESOURCE_TYPE, Constants.TYPE_ATTRIBUTES); |
| result.put(Constants.RSRC_ATTRIBUTES, attrMap); |
| |
| final Set<String> names = type.keySet(); |
| for(final String name : names) { |
| final Map<String, Object> dataMap = new HashMap<String, Object>(); |
| attrMap.put(name, dataMap); |
| dataMap.put(ResourceResolver.PROPERTY_RESOURCE_TYPE, type.getType(name)); |
| dataMap.put(Constants.PROP_RESOURCE_SUPER_TYPE, Constants.TYPE_ATTRIBUTE); |
| |
| if ( type.getDescription() != null ) { |
| dataMap.put(Constants.PROP_DESCRIPTION, type.getDescription()); |
| } |
| dataMap.put(Constants.PROP_TYPE, type.getType(name).getTypeName()); |
| |
| final Object value = cd.get(name); |
| if ( value != null ) { |
| if ( value.getClass().isArray() ) { |
| final int length = Array.getLength(value); |
| final Object[] values = new Object[length]; |
| for (int i = 0; i < length; i ++) { |
| final Object o = Array.get(value, i); |
| values[i] = convert(o); |
| } |
| dataMap.put(Constants.PROP_VALUE, values); |
| } else if (value instanceof TabularData) { |
| dataMap.put(Constants.RSRC_VALUE, convertObject((TabularData)value)); |
| } else if (value instanceof CompositeData) { |
| dataMap.put(Constants.RSRC_VALUE, convertObject((CompositeData)value)); |
| } else { |
| dataMap.put(Constants.PROP_VALUE, convert(value)); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| public Iterator<Resource> getChildren(final String parentPath, final String subPath) { |
| final Map<String, Object> childStructure = this.convertData(); |
| if ( childStructure != null ) { |
| Map<String, Object> current = childStructure; |
| if ( subPath != null ) { |
| final String[] segments = subPath.split("/"); |
| for(final String path : segments) { |
| final Object child = current.get(path); |
| if ( child == null ) { |
| return null; |
| } |
| if ( !(child instanceof Map) ) { |
| return null; |
| } |
| current = (Map<String, Object>)child; |
| } |
| } |
| if ( current.size() == 0 ) { |
| return null; |
| } |
| final Iterator<Map.Entry<String, Object>> childIter = current.entrySet().iterator(); |
| |
| return new Iterator<Resource>() { |
| |
| private Map.Entry<String, Object> next = this.seek(); |
| |
| private Map.Entry<String, Object> seek() { |
| while ( childIter.hasNext() ) { |
| final Map.Entry<String, Object> c = childIter.next(); |
| if ( c.getValue() instanceof Map ) { |
| return c; |
| } |
| } |
| return null; |
| } |
| |
| public void remove() { |
| throw new UnsupportedOperationException("remove"); |
| } |
| |
| public Resource next() { |
| final Map.Entry<String, Object> props = next; |
| if ( props == null ) { |
| throw new NoSuchElementException(); |
| } |
| next = seek(); |
| return new MapResource(getResourceResolver(), parentPath + '/' + props.getKey(), (Map)props.getValue(), AttributeResource.this); |
| } |
| |
| public boolean hasNext() { |
| return next != null; |
| } |
| }; |
| } |
| return null; |
| } |
| } |