Package com.composum.sling.core.servlet

Class NodeTreeServlet

java.lang.Object

javax.servlet.GenericServlet

org.apache.sling.api.servlets.SlingSafeMethodsServlet

org.apache.sling.api.servlets.SlingAllMethodsServlet

com.composum.sling.core.servlet.AbstractServiceServlet

com.composum.sling.core.servlet.NodeTreeServlet

All Implemented Interfaces:

RestrictedService, Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public abstract class NodeTreeServlet
extends AbstractServiceServlet

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	NodeTreeServlet.DefaultTreeNodeStrategy
static class	NodeTreeServlet.LabelType	the possible tree name options
static class	NodeTreeServlet.NodeParameters	the structure for parsing property values from JSON using Gson
static interface	NodeTreeServlet.TreeNodeStrategy
class	NodeTreeServlet.TreeOperation	creates a JSON object for the requested node (requested by the suffix); this JSON response contains the node identifiers, some node type hints and a list of the children of the node; this operation provides the data for a tree implementation which requests the nodes on demand suffix: the path to the node selectors / parameters: - 'label': 'name' or 'title' - selects the value to use for the nodes 'text' attribute URL examples: - http://host/bin/cpm/nodes/node.tree.json/path/to/the/node - http://host/bin/cpm/nodes/node.tree.title.json/path/to/the/node - http://host/bin/cpm/nodes/node.tree.json/path/to/the/node?label=title

Field Summary

Fields inherited from class com.composum.sling.core.servlet.AbstractServiceServlet

DATE_FORMAT, PARAM_BEFORE, PARAM_CMD, PARAM_FILE, PARAM_FILTER, PARAM_ID, PARAM_INDEX, PARAM_JCR_CONTENT, PARAM_LABEL, PARAM_MIME_TYPE, PARAM_NAME, PARAM_PATH, PARAM_QUERY, PARAM_RESOURCE_TYPE, PARAM_TITLE, PARAM_TYPE, PARAM_URL, PARAM_VALUE, PARAM_VERSION

Constructor Summary

Constructors

Constructor	Description
NodeTreeServlet()

Method Summary

Modifier and Type	Method	Description
void	addVirtualContent(com.google.gson.stream.JsonWriter writer, NodeTreeServlet.TreeNodeStrategy nodeStrategy, ResourceHandle resource, NodeTreeServlet.LabelType labelType)
static String	getContentTypeKey(NodeTreeServlet.TreeNodeStrategy strategy, ResourceHandle resource, String prefix)
static String	getFileTypeKey(ResourceHandle resource, String prefix)
NodeTreeServlet.NodeParameters	getFormParameters(org.apache.sling.api.SlingHttpServletRequest request)
static String	getMimeTypeKey(ResourceHandle resource, String prefix)
static @NotNull String	getMimeTypeKey(String mimeType)
protected abstract ResourceFilter	getNodeFilter(org.apache.sling.api.SlingHttpServletRequest request)	Determines the filter to use for node retrieval; scans the request for filter parameter or selector.
String	getNodeLabel(ResourceHandle resource, NodeTreeServlet.LabelType labelType)
static String	getPrimaryTypeKey(ResourceHandle resource)
static String	getResourceTypeKey(ResourceHandle resource, String prefix)
String	getSortName(org.apache.sling.api.resource.Resource resource)
protected List<org.apache.sling.api.resource.Resource>	prepareTreeItems(ResourceHandle resource, List<org.apache.sling.api.resource.Resource> items)	extension hook for additional filters or sorting
void	writeJsonNode(com.google.gson.stream.JsonWriter writer, NodeTreeServlet.TreeNodeStrategy nodeStrategy, ResourceHandle resource, NodeTreeServlet.LabelType labelType, boolean isVirtual)
void	writeJsonNodeData(com.google.gson.stream.JsonWriter writer, NodeTreeServlet.TreeNodeStrategy nodeStrategy, ResourceHandle resource, NodeTreeServlet.LabelType labelType, boolean isVirtual)
String	writeNodeIdentifiers(com.google.gson.stream.JsonWriter writer, NodeTreeServlet.TreeNodeStrategy nodeStrategy, ResourceHandle resource, NodeTreeServlet.LabelType labelType, boolean isVirtual)
void	writeNodeJcrState(com.google.gson.stream.JsonWriter writer, ResourceHandle resource)
void	writeNodeTreeType(com.google.gson.stream.JsonWriter writer, ResourceFilter filter, ResourceHandle resource, boolean isVirtual)

Methods inherited from class com.composum.sling.core.servlet.AbstractServiceServlet

deactivate, doDelete, doGet, doPost, doPut, getJsonObject, getJsonObject, getJsonObject, getOperations, getPath, getResource, getRestrictions, getServiceKey, isEnabled, jsonAnswerItemExists, jsonValue, methodDeletePermission, methodGetPermission, methodPostPermission, methodPutPermission, setNoCacheHeaders, tryToUseRawSuffix

Methods inherited from class org.apache.sling.api.servlets.SlingAllMethodsServlet

getAllowedRequestMethods, isMethodValid, mayService

Methods inherited from class org.apache.sling.api.servlets.SlingSafeMethodsServlet

doGeneric, doHead, doOptions, doTrace, getServletInfo, handleMethodNotImplemented, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeTreeServlet

public NodeTreeServlet()

Method Detail

getNodeFilter

protected abstract ResourceFilter getNodeFilter(org.apache.sling.api.SlingHttpServletRequest request)

Determines the filter to use for node retrieval; scans the request for filter parameter or selector.

prepareTreeItems

protected List<org.apache.sling.api.resource.Resource> prepareTreeItems(ResourceHandle resource,
                                                                        List<org.apache.sling.api.resource.Resource> items)

extension hook for additional filters or sorting

writeJsonNode

public void writeJsonNode(com.google.gson.stream.JsonWriter writer,
                          NodeTreeServlet.TreeNodeStrategy nodeStrategy,
                          ResourceHandle resource,
                          NodeTreeServlet.LabelType labelType,
                          boolean isVirtual)
                   throws IOException

Throws:

IOException

writeJsonNodeData

public void writeJsonNodeData(com.google.gson.stream.JsonWriter writer,
                              NodeTreeServlet.TreeNodeStrategy nodeStrategy,
                              ResourceHandle resource,
                              NodeTreeServlet.LabelType labelType,
                              boolean isVirtual)
                       throws IOException

Throws:

IOException

writeNodeTreeType

public void writeNodeTreeType(com.google.gson.stream.JsonWriter writer,
                              ResourceFilter filter,
                              ResourceHandle resource,
                              boolean isVirtual)
                       throws IOException

Throws:

IOException

addVirtualContent

public void addVirtualContent(com.google.gson.stream.JsonWriter writer,
                              NodeTreeServlet.TreeNodeStrategy nodeStrategy,
                              ResourceHandle resource,
                              NodeTreeServlet.LabelType labelType)
                       throws IOException

Throws:

IOException

getSortName

public String getSortName(org.apache.sling.api.resource.Resource resource)

getNodeLabel

public String getNodeLabel(ResourceHandle resource,
                           NodeTreeServlet.LabelType labelType)

writeNodeIdentifiers

public String writeNodeIdentifiers(com.google.gson.stream.JsonWriter writer,
                                   NodeTreeServlet.TreeNodeStrategy nodeStrategy,
                                   ResourceHandle resource,
                                   NodeTreeServlet.LabelType labelType,
                                   boolean isVirtual)
                            throws IOException

Throws:

IOException

writeNodeJcrState

public void writeNodeJcrState(com.google.gson.stream.JsonWriter writer,
                              ResourceHandle resource)
                       throws IOException

Throws:

IOException

getFormParameters

public NodeTreeServlet.NodeParameters getFormParameters(org.apache.sling.api.SlingHttpServletRequest request)

getContentTypeKey

public static String getContentTypeKey(NodeTreeServlet.TreeNodeStrategy strategy,
                                       ResourceHandle resource,
                                       String prefix)

getPrimaryTypeKey

public static String getPrimaryTypeKey(ResourceHandle resource)

getResourceTypeKey

public static String getResourceTypeKey(ResourceHandle resource,
                                        String prefix)

getFileTypeKey

public static String getFileTypeKey(ResourceHandle resource,
                                    String prefix)

getMimeTypeKey

public static String getMimeTypeKey(ResourceHandle resource,
                                    String prefix)

getMimeTypeKey

@NotNull
public static @NotNull String getMimeTypeKey(String mimeType)