Magnolia REST Content Delivery 2.0-rc1
File FilteringContentDecoratorBuilder.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| FilteringContentDecoratorBuilder | 59 | 38 | 0% | 20 | 20 |
Contributing tests
This file is covered by 22 tests.
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| 1 | /** | |
| 2 | * This file Copyright (c) 2017 Magnolia International | |
| 3 | * Ltd. (http://www.magnolia-cms.com). All rights reserved. | |
| 4 | * | |
| 5 | * | |
| 6 | * This file is dual-licensed under both the Magnolia | |
| 7 | * Network Agreement and the GNU General Public License. | |
| 8 | * You may elect to use one or the other of these licenses. | |
| 9 | * | |
| 10 | * This file is distributed in the hope that it will be | |
| 11 | * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the | |
| 12 | * implied warranty of MERCHANTABILITY or FITNESS FOR A | |
| 13 | * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. | |
| 14 | * Redistribution, except as permitted by whichever of the GPL | |
| 15 | * or MNA you select, is prohibited. | |
| 16 | * | |
| 17 | * 1. For the GPL license (GPL), you can redistribute and/or | |
| 18 | * modify this file under the terms of the GNU General | |
| 19 | * Public License, Version 3, as published by the Free Software | |
| 20 | * Foundation. You should have received a copy of the GNU | |
| 21 | * General Public License, Version 3 along with this program; | |
| 22 | * if not, write to the Free Software Foundation, Inc., 51 | |
| 23 | * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 24 | * | |
| 25 | * 2. For the Magnolia Network Agreement (MNA), this file | |
| 26 | * and the accompanying materials are made available under the | |
| 27 | * terms of the MNA which accompanies this distribution, and | |
| 28 | * is available at http://www.magnolia-cms.com/mna.html | |
| 29 | * | |
| 30 | * Any modifications to this file must keep this entire header | |
| 31 | * intact. | |
| 32 | * | |
| 33 | */ | |
| 34 | package info.magnolia.rest.delivery.jcr.filter; | |
| 35 | ||
| 36 | import info.magnolia.jcr.decoration.ContentDecoratorNodeIterator; | |
| 37 | import info.magnolia.jcr.decoration.ContentDecoratorNodeWrapper; | |
| 38 | import info.magnolia.jcr.predicate.JCRMgnlPropertyHidingPredicate; | |
| 39 | import info.magnolia.jcr.wrapper.ChildFilteringContentDecorator; | |
| 40 | import info.magnolia.jcr.wrapper.PropertyFilteringContentDecorator; | |
| 41 | import info.magnolia.rest.delivery.jcr.decorator.ReferenceExpandDecorator; | |
| 42 | import info.magnolia.rest.delivery.jcr.decorator.ReferenceExpandWrapper; | |
| 43 | import info.magnolia.rest.reference.ReferenceDefinition; | |
| 44 | ||
| 45 | import java.util.ArrayList; | |
| 46 | import java.util.Collections; | |
| 47 | import java.util.List; | |
| 48 | ||
| 49 | import javax.jcr.Node; | |
| 50 | import javax.jcr.NodeIterator; | |
| 51 | import javax.jcr.RepositoryException; | |
| 52 | ||
| 53 | import org.slf4j.Logger; | |
| 54 | import org.slf4j.LoggerFactory; | |
| 55 | ||
| 56 | /** | |
| 57 | * A builder to centralize the decorators in one place. | |
| 58 | */ | |
| 59 | public class FilteringContentDecoratorBuilder implements Cloneable { | |
| 60 | private static final Logger log = LoggerFactory.getLogger(FilteringContentDecoratorBuilder.class); | |
| 61 | ||
| 62 | private List<String> childNodeTypes = new ArrayList<>(); | |
| 63 | private boolean includeSystemProperties; | |
| 64 | private int depth; | |
| 65 | private List<ReferenceDefinition> references = new ArrayList<>(); | |
| 66 | ||
| 67 | 23 |  public FilteringContentDecoratorBuilder childNodeTypes(List<String> childrenNodeTypes) { |
| 68 | 23 | this.childNodeTypes = childrenNodeTypes; |
| 69 | 23 | return this; |
| 70 | } | |
| 71 | ||
| 72 | 23 | public FilteringContentDecoratorBuilder includeSystemProperties(boolean includeSystemProperties) { |
| 73 | 23 | this.includeSystemProperties = includeSystemProperties; |
| 74 | 23 | return this; |
| 75 | } | |
| 76 | ||
| 77 | 23 | public FilteringContentDecoratorBuilder depth(int depth) { |
| 78 | 23 | this.depth = depth; |
| 79 | 23 | return this; |
| 80 | } | |
| 81 | ||
| 82 | 23 | public FilteringContentDecoratorBuilder references(List<ReferenceDefinition> references) { |
| 83 | 23 | this.references = references; |
| 84 | 23 | return this; |
| 85 | } | |
| 86 | ||
| 87 | 11 | public Node wrapNode(Node node) { |
| 88 | 11 | if (!childNodeTypes.isEmpty()) { |
| 89 | 11 | node = new ContentDecoratorNodeWrapper<>(node, new ChildFilteringContentDecorator(new NodeTypesPredicate(childNodeTypes), true)); |
| 90 | } | |
| 91 | ||
| 92 | 11 | if (!includeSystemProperties) { |
| 93 | 1 | node = new ContentDecoratorNodeWrapper<>(node, new PropertyFilteringContentDecorator(new JCRMgnlPropertyHidingPredicate())); |
| 94 | } | |
| 95 | ||
| 96 | 11 | if (depth >= 0) { |
| 97 | 11 | ChildFilteringContentDecorator depthDecorator = new ChildFilteringContentDecorator(new DepthFilteringPredicate(getDepth(node), getDepth(node) + depth), true); |
| 98 | 11 | node = new ContentDecoratorNodeWrapper<>(node, depthDecorator); |
| 99 | } | |
| 100 | ||
| 101 | 11 | if (references != null && !references.isEmpty()) { |
| 102 | 0 | FilteringContentDecoratorBuilder expandDecorators = this.clone(); |
| 103 | 0 | expandDecorators |
| 104 | .childNodeTypes(Collections.emptyList()) | |
| 105 | .depth(-1); | |
| 106 | ||
| 107 | 0 | node = new ReferenceExpandWrapper(node, references, expandDecorators); |
| 108 | } | |
| 109 | ||
| 110 | 11 | return node; |
| 111 | } | |
| 112 | ||
| 113 | 12 | public NodeIterator wrapNodeIterator(NodeIterator nodeIterator) { |
| 114 | ||
| 115 | 12 | if (!childNodeTypes.isEmpty()) { |
| 116 | 12 | nodeIterator = new ChildNodeTypesFilteringNodeIterator(nodeIterator, childNodeTypes); |
| 117 | } | |
| 118 | ||
| 119 | 12 | if (!includeSystemProperties) { |
| 120 | 0 | nodeIterator = new ContentDecoratorNodeIterator(nodeIterator, new PropertyFilteringContentDecorator(new JCRMgnlPropertyHidingPredicate())); |
| 121 | } | |
| 122 | ||
| 123 | 12 | if (depth >= 0) { |
| 124 | 12 | nodeIterator = new DepthFilteringDecoratorNodeIterator(nodeIterator, depth); |
| 125 | } | |
| 126 | ||
| 127 | 12 | if (references != null && !references.isEmpty()) { |
| 128 | 0 | FilteringContentDecoratorBuilder expandDecorators = this.clone(); |
| 129 | 0 | expandDecorators |
| 130 | .childNodeTypes(Collections.emptyList()) | |
| 131 | .depth(-1); | |
| 132 | ||
| 133 | 0 | nodeIterator = new ContentDecoratorNodeIterator(nodeIterator, new ReferenceExpandDecorator(references, expandDecorators)); |
| 134 | } | |
| 135 | ||
| 136 | 12 | return nodeIterator; |
| 137 | } | |
| 138 | ||
| 139 | 22 | private int getDepth(Node node) { |
| 140 | 22 | try { |
| 141 | 22 | return node.getDepth(); |
| 142 | } catch (RepositoryException e) { | |
| 143 | 0 | return 0; |
| 144 | } | |
| 145 | } | |
| 146 | ||
| 147 | 0 | @Override |
| 148 | public FilteringContentDecoratorBuilder clone() { | |
| 149 | 0 | try { |
| 150 | 0 | return (FilteringContentDecoratorBuilder) super.clone(); |
| 151 | } catch (CloneNotSupportedException e) { | |
| 152 | 0 | log.warn("Cannot clone new builder!", e); |
| 153 | } | |
| 154 | ||
| 155 | 0 | return new FilteringContentDecoratorBuilder(); |
| 156 | } | |
| 157 | } |