/**
* removes a Layer identified by its title from the parent Layer. A reference to the removed layer
* will be returned. If no Layer matching the passed title can be found nothing happens and
* <tt>null</tt> will be returned.
*
* @param title
* @return removerd Layer
*/
public Layer removeLayerByTitle(String title) {
for (int i = 0; i < layer.size(); i++) {
Layer ly = layer.get(i);
if (ly.getTitle().equals(title)) {
layer.remove(i);
return ly;
}
}
return null;
}
/**
* removes a Layer identified by its name from the parent Layer. A reference to the removed layer
* will be returned. If no Layer matching the passed name can be found nothing happens and
* <tt>null</tt> will be returned.
*
* @param name
* @return removerd Layer
*/
public Layer removeLayer(String name) {
for (int i = 0; i < layer.size(); i++) {
Layer ly = layer.get(i);
if (ly.getName() != null) {
if (ly.getName().equals(name)) {
layer.remove(i);
return ly;
}
}
}
return null;
}
/**
* returns the <tt>UserStyle</tt> (SLD) representation of the style identified by the submitted
* name.
*
* @param name of the requested style
* @return SLD - UserStyle
*/
public UserStyle getStyle(String name) {
Style style = styles.get(name);
UserStyle us = null;
if (style == null) {
if (parent != null) {
us = parent.getStyle(name);
}
} else {
us = style.getStyleContent();
}
return us;
}
/**
* Extent declarations are inherited from parent Layers. Any Extent declarations in the child with
* the same name attribute as one inherited from the parent replaces the value declared by the
* parent. A Layer shall not declare an Extent unless a Dimension with the same name has been
* declared or inherited earlier in the Capabilities XML.
*
* @return the extents
*/
public Extent[] getExtent() {
HashMap<String, Extent> list = new HashMap<String, Extent>();
if (parent != null) {
Extent[] pEx = parent.getExtent();
for (int i = 0; i < pEx.length; i++) {
list.put(pEx[i].getName(), pEx[i]);
}
}
for (int i = 0; i < extent.size(); i++) {
Extent ex = extent.get(i);
list.put(ex.getName(), ex);
}
return list.values().toArray(new Extent[list.size()]);
}
/** @return a list of style that can be used form rendering the layer. */
public Style[] getStyles() {
HashMap<String, Style> list = new HashMap<String, Style>();
if (parent != null) {
Style[] pStyle = parent.getStyles();
for (int i = 0; i < pStyle.length; i++) {
list.put(pStyle[i].getName(), pStyle[i]);
}
}
for (Style style : styles.values()) {
if (list.get(style.getName()) == null) {
list.put(style.getName(), style);
}
}
return list.values().toArray(new Style[list.size()]);
}
/**
* Layers may have zero or more <BoundingBox> elements that are either stated explicitly or
* inherited from a parent Layer. Each BoundingBox states the bounding rectangle of the map data
* in a particular spatial reference system; the attribute SRS indicates which SRS applies. If the
* data area is shaped irregularly then the BoundingBox gives the minimum enclosing rectangle. The
* attributes minx, miny, maxx, maxy indicate the edges of the bounding box in units of the
* specified SRS. Optional resx and resy attributes indicate the spatial resolution of the data in
* those same units.
*
* <p>A Layer may have multiple BoundingBox element, but each one shall state a different SRS. A
* Layer inherits any BoundingBox values defined by its parents. A BoundingBox inherited from the
* parent Layer for a particular SRS is replaced by any declaration for the same SRS in the child
* Layer. A BoundingBox in the child for a new SRS not already declared by the parent is added to
* the list of bounding boxes for the child Layer. A single Layer element shall not contain more
* than one BoundingBox for the same SRS.
*
* @return bounding boxes
*/
public LayerBoundingBox[] getBoundingBoxes() {
HashMap<String, LayerBoundingBox> list = new HashMap<String, LayerBoundingBox>(100);
if (parent != null) {
LayerBoundingBox[] plb = parent.getBoundingBoxes();
for (int i = 0; i < plb.length; i++) {
list.put(plb[i].getSRS(), plb[i]);
}
}
for (int i = 0; i < boundingBox.size(); i++) {
LayerBoundingBox lb = (LayerBoundingBox) boundingBox.get(i);
list.put(lb.getSRS(), lb);
}
LayerBoundingBox[] lbs = new LayerBoundingBox[list.size()];
return list.values().toArray(lbs);
}
/**
* Every Layer is available in one or more spatial reference systems Every Layer shall have at
* least one >SRS> element that is either stated explicitly or inherited from a parent Layer
* . The root <Layer> element shall include a sequence of zero or more SRS elements listing
* all SRSes that are common to all subsidiary layers. Use a single SRS element with empty content
* (like so: "<SRS></SRS> ") if there is no common SRS. Layers may optionally add to
* the global SRS list, or to the list inherited from a parent layer. Any duplication shall be
* ignored by clients. When a Layer is available in several Spatial Reference Systems, there are
* two ways to encode the list of SRS values. The first of these is new in this version of the
* specification, the second is deprecated but still included for backwards compatibility.
*
* <p>1. Optional, recommended: Multiple single-valued <SRS> elements: a list of SRS values
* is represented as a sequence of <SRS> elements, each of which contains only a single SRS
* name. Example: <SRS>EPSG:1234</SRS> <SRS>EPSG:5678</SRS>. 2.
* Deprecated: Single list-valued <SRS> element: a list of SRS values is represented asa
* whitespace-separated list of SRS names contained within a single <SRS> element. Example:
* <SRS>EPSG:1234 EPSG:5678</SRS>.
*
* @return the srs
*/
public String[] getSrs() {
String[] pSrs = null;
if (parent != null) {
pSrs = parent.getSrs();
} else {
pSrs = new String[0];
}
List<String> list = new ArrayList<String>(srs.size() + pSrs.length);
list.addAll(srs);
for (int i = 0; i < pSrs.length; i++) {
if (!list.contains(pSrs[i])) {
list.add(pSrs[i]);
}
}
return list.toArray(new String[list.size()]);
}
/**
* Dimension declarations are inherited from parent Layers. Any new Dimension declarations in the
* child are added to the list inherited from the parent. A child shall not redefine a Dimension
* with the same name attribute as one that was inherited.
*
* @return the dimensions
*/
public Dimension[] getDimension() {
HashMap<String, Dimension> list = new HashMap<String, Dimension>();
if (parent != null) {
Dimension[] pDim = parent.getDimension();
for (int i = 0; i < pDim.length; i++) {
list.put(pDim[i].getName(), pDim[i]);
}
}
for (int i = 0; i < dimension.size(); i++) {
Dimension dim = dimension.get(i);
if (list.get(dim.getName()) == null) {
list.put(dim.getName(), dim);
}
}
return list.values().toArray(new Dimension[list.size()]);
}
/**
* A Map Server may use zero or more <Identifier> elements to list ID numbers or labels
* defined by a particular Authority. The text content of the Identifier element is the ID value.
*
* @return the identifiers
*/
public Identifier[] getIdentifier() {
HashMap<String, Identifier> list = new HashMap<String, Identifier>();
if (parent != null) {
Identifier[] pIden = parent.getIdentifier();
for (int i = 0; i < pIden.length; i++) {
list.put(pIden[i].getAuthority(), pIden[i]);
}
}
for (int i = 0; i < identifier.size(); i++) {
Identifier iden = identifier.get(i);
if (list.get(iden.getAuthority()) == null) {
list.put(iden.getAuthority(), iden);
}
}
Identifier[] ids = new Identifier[list.size()];
return list.values().toArray(ids);
}
/**
* The authority attribute of the Identifier element corresponds to the name attribute of a
* separate <AuthorityURL> element. AuthorityURL encloses an <OnlineResource> element
* which states the URL of a document defining the meaning of the Identifier values.
*
* @return the authority url object
*/
public AuthorityURL[] getAuthorityURL() {
HashMap<String, AuthorityURL> list = new HashMap<String, AuthorityURL>();
if (parent != null) {
AuthorityURL[] pAu = parent.getAuthorityURL();
for (int i = 0; i < pAu.length; i++) {
list.put(pAu[i].getName(), pAu[i]);
}
}
for (int i = 0; i < authorityURL.size(); i++) {
AuthorityURL au = authorityURL.get(i);
if (list.get(au.getName()) == null) {
list.put(au.getName(), au);
}
}
AuthorityURL[] aus = new AuthorityURL[list.size()];
return list.values().toArray(aus);
}
/**
* returns the <tt>Style</tt> identified by the submitted name.
*
* @param name of the requested style
* @return Style
*/
public Style getStyleResource(String name) {
Style style = styles.get(name);
if (style == null && name.length() == 0) {
String tmpName = "default";
style = styles.get(tmpName);
if (style == null && name.length() == 0) {
tmpName = "default:" + this.name;
style = styles.get(tmpName);
}
} else if (style == null && "default".equals(name)) {
String tmpName = "default:" + this.name;
style = styles.get(tmpName);
}
if (style == null) {
if (parent != null) {
style = parent.getStyleResource(name);
}
}
return style;
}
/**
* appends the selected layers of a WMS to the passed <code>ViewContext</code>
*
* @param context
* @throws ContextException
* @throws MalformedURLException
* @throws PortalException
* @throws InvalidCapabilitiesException
*/
private void appendWMS(RPCWebEvent rpc, ViewContext context)
throws MalformedURLException, ContextException, PortalException,
InvalidCapabilitiesException {
RPCStruct struct = (RPCStruct) rpc.getRPCMethodCall().getParameters()[0].getValue();
URL url = new URL((String) struct.getMember("WMSURL").getValue());
String name = (String) struct.getMember("WMSNAME").getValue();
String version = (String) struct.getMember("WMSVERSION").getValue();
String layers = (String) struct.getMember("LAYERS").getValue();
String formatName = (String) struct.getMember("FORMAT").getValue();
boolean useAuthentification = false;
if (struct.getMember("useAuthentification") != null) {
String tmp = (String) struct.getMember("useAuthentification").getValue();
useAuthentification = "true".equalsIgnoreCase(tmp);
}
List<String> list = StringTools.toList(layers, ";", true);
WMSCapabilitiesDocument capa = null;
try {
StringBuffer sb = new StringBuffer(500);
if ("1.0.0".equals(version)) {
sb.append(url.toExternalForm()).append("?request=capabilities&service=WMS");
} else {
sb.append(url.toExternalForm()).append("?request=GetCapabilities&service=WMS");
}
if (useAuthentification) {
HttpSession session = ((HttpServletRequest) getRequest()).getSession();
String user =
((org.apache.jetspeed.om.security.BaseJetspeedUser)
session.getAttribute("turbine.user"))
.getUserName();
String password =
((org.apache.jetspeed.om.security.BaseJetspeedUser)
session.getAttribute("turbine.user"))
.getPassword();
if (!"anon".equals(user)) {
sb.append("&user="******"&password="******"GetCapabilites for added WMS", sb.toString());
capa = WMSCapabilitiesDocumentFactory.getWMSCapabilitiesDocument(new URL(sb.toString()));
} catch (Exception e) {
LOG.logError(e.getMessage(), e);
String msg = null;
if ("1.0.0".equals(version)) {
msg =
StringTools.concat(
500,
"could not load WMS capabilities from: ",
new URL(url.toExternalForm() + "?request=capabilities&service=WMS"),
"; reason: ",
e.getMessage());
} else {
msg =
StringTools.concat(
500,
"could not load WMS capabilities from: ",
new URL(url.toExternalForm() + "?request=GetCapabilities&service=WMS"),
"; reason: ",
e.getMessage());
}
throw new PortalException(msg);
}
WMSCapabilities capabilities = (WMSCapabilities) capa.parseCapabilities();
String rootTitle = capabilities.getLayer().getTitle();
// ----------------------------------------------------------------------------
// stuff required by layerlist tree view
Node root = context.getGeneral().getExtension().getLayerTreeRoot();
// check if Node width this title already exists
Node[] nodes = root.getNodes();
int newNodeId = -1;
for (int j = 0; j < nodes.length; j++) {
if (nodes[j].getTitle().equals(rootTitle)) {
newNodeId = nodes[j].getId();
break;
}
}
if (newNodeId == -1) {
newNodeId = root.getMaxNodeId() + 1;
Node newNode = new Node(newNodeId, root, rootTitle, true, false);
Node[] newNodes = new Node[nodes.length + 1];
newNodes[0] = newNode;
for (int j = 0; j < nodes.length; j++) {
newNodes[j + 1] = nodes[j];
}
root.setNodes(newNodes);
}
// ----------------------------------------------------------------------------
for (int i = 0; i < list.size(); i++) {
String[] lay = StringTools.toArray(list.get(i), "|", false);
Server server = new Server(name, version, "OGC:WMS", url, capabilities);
String srs = context.getGeneral().getBoundingBox()[0].getCoordinateSystem().getPrefixedName();
Format format = new Format(formatName, true);
FormatList fl = new FormatList(new Format[] {format});
// read available styles from WMS capabilities and add them
// to the WMC layer
org.deegree.ogcwebservices.wms.capabilities.Layer wmslay = capabilities.getLayer(lay[0]);
org.deegree.ogcwebservices.wms.capabilities.Style[] wmsstyles = wmslay.getStyles();
Style[] styles = null;
if (wmsstyles == null || wmsstyles.length == 0) {
// a wms capabilities layer may offeres one or more styles for
// a layer but it don't have to. But WMC must have at least one
// style for each layer; So we set a default style in the case
// a wms does not declares one
styles = new Style[1];
styles[0] = new Style("", "default", "", null, true);
} else {
styles = new Style[wmsstyles.length];
for (int j = 0; j < styles.length; j++) {
boolean isDefault =
wmsstyles[j].getName().toLowerCase().indexOf("default") > -1
|| wmsstyles[j].getName().trim().length() == 0;
ImageURL legendURL = null;
LegendURL[] lUrl = wmsstyles[j].getLegendURL();
if (lUrl != null && lUrl.length > 0) {
legendURL =
new ImageURL(
lUrl[0].getWidth(),
lUrl[0].getHeight(),
lUrl[0].getFormat(),
lUrl[0].getOnlineResource());
}
styles[j] =
new Style(
wmsstyles[j].getName(),
wmsstyles[j].getTitle(),
wmsstyles[j].getAbstract(),
legendURL,
isDefault);
}
}
StyleList styleList = new StyleList(styles);
BaseURL mdUrl = null;
MetadataURL[] mdUrls = wmslay.getMetadataURL();
if (mdUrls != null && mdUrls.length == 1 && mdUrls[0] != null) {
mdUrl = mdUrls[0];
}
int authentication = LayerExtension.NONE;
if (useAuthentification) {
authentication = LayerExtension.USERPASSWORD;
}
LayerExtension lex =
new LayerExtension(
null,
false,
wmslay.getScaleHint().getMin(),
wmslay.getScaleHint().getMax(),
false,
authentication,
newNodeId,
false,
null);
Layer newLay =
new Layer(
server,
lay[0],
lay[1],
null,
new String[] {srs},
null,
mdUrl,
fl,
styleList,
wmslay.isQueryable(),
false,
lex);
if (context
.getLayerList()
.getLayer(newLay.getName(), server.getOnlineResource().toExternalForm())
== null) {
context.getLayerList().addLayerToTop(newLay);
}
}
try {
XMLFragment xml = XMLFactory.export(context);
System.out.println(xml.getAsPrettyString());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Layers may include a <ScaleHint> element that suggests minimum and maximum scales for
* which it is appropriate to display this layer. Because WMS output is destined for output
* devices of arbitrary size and resolution, the usual definition of scale as the ratio of map
* size to real-world size is not appropriate here. The following definition of Scale Hint is
* recommended. Consider a hypothetical map with a given Bounding Box, width and height. The
* central pixel of that map (or the pixel just to the northwest of center) will have some size,
* which can be expressed as the ground distance in meters of the southwest to northeast diagonal
* of that pixel. The two values in ScaleHint are the minimum and maximum recommended values of
* that diagonal. It is recognized that this definition is not geodetically precise, but at the
* same time the hope is that by including it conventions will develop that can be later specified
* more clearly.
*
* @return the scale hint
*/
public ScaleHint getScaleHint() {
if ((parent != null) && (scaleHint == null)) {
return parent.getScaleHint();
}
return scaleHint;
}
/**
* The optional <Attribution> element provides a way to identify the source of the map data
* used in a Layer or collection of Layers. Attribution encloses several optional elements:
* <OnlineResource>states the data provider's URL; <Title> is a human-readable string naming
* the data provider; <LogoURL> is the URL of a logo image. Client applications may choose
* to display one or more of these items. A <Format> element in LogoURL indicates the MIME
* type of the logo image, and the attributes width and height state the size of the image in
* pixels.
*
* @return the attribution
*/
public Attribution getAttribution() {
if ((parent != null) && (attribution == null)) {
return parent.getAttribution();
}
return attribution;
}
/**
* Every Layer shall have exactly one <LatLonBoundingBox> element that is either stated
* explicitly or inherited from a parent Layer. LatLonBoundingBox states the minimum bounding
* rectangle of the map data in the EPSG:4326 geographic coordinate system. The LatLonBoundingBox
* attributes minx, miny, maxx, maxy indicate the edges of an enclosing rectangle in decimal
* degrees. LatLonBoundingBox shall be supplied regardless of what SRS the map server may support,
* but it may be approximate if EPSG:4326 is not supported. Its purpose is to facilitate
* geographic searches without requiring coordinate transformations by the search engine.
*
* @return the bbox
*/
public Envelope getLatLonBoundingBox() {
if ((latLonBoundingBox == null) && (parent != null)) {
return parent.getLatLonBoundingBox();
}
return latLonBoundingBox;
}
/**
* returns the layers offered by the WMPS
*
* @param layerElem
* @param parent
* @return Layer
* @throws XMLParsingException
* @throws UnknownCRSException
*/
protected Layer parseLayers(Element layerElem, Layer parent)
throws XMLParsingException, UnknownCRSException {
LOG.entering();
boolean queryable = XMLTools.getNodeAsBoolean(layerElem, "./@queryable", nsContext, false);
int cascaded = XMLTools.getNodeAsInt(layerElem, "./@cascaded", nsContext, 0);
boolean opaque = XMLTools.getNodeAsBoolean(layerElem, "./@opaque", nsContext, false);
boolean noSubsets = XMLTools.getNodeAsBoolean(layerElem, "./@noSubsets", nsContext, false);
int fixedWidth = XMLTools.getNodeAsInt(layerElem, "./@fixedWidth", nsContext, 0);
int fixedHeight = XMLTools.getNodeAsInt(layerElem, "./@fixedHeight", nsContext, 0);
String name = XMLTools.getNodeAsString(layerElem, "./Name", nsContext, null);
String title = XMLTools.getRequiredNodeAsString(layerElem, "./Title", nsContext);
String layerAbstract = XMLTools.getNodeAsString(layerElem, "./Abstract", nsContext, null);
String[] keywords = XMLTools.getNodesAsStrings(layerElem, "./KeywordList/Keyword", nsContext);
String[] srs = XMLTools.getNodesAsStrings(layerElem, "./SRS", nsContext);
List nl = XMLTools.getNodes(layerElem, "./BoundingBox", nsContext);
// TODO substitue with Envelope
LayerBoundingBox[] bboxes = null;
if (nl.size() == 0 && parent != null) {
// inherit BoundingBoxes from parent layer
bboxes = parent.getBoundingBoxes();
} else {
bboxes = parseLayerBoundingBoxes(nl);
}
Element llBox = (Element) XMLTools.getNode(layerElem, "./LatLonBoundingBox", nsContext);
Envelope llBoundingBox = null;
if (llBox == null && parent != null) {
// inherit LatLonBoundingBox parent layer
llBoundingBox = parent.getLatLonBoundingBox();
} else if (llBox != null) {
llBoundingBox = parseLatLonBoundingBox(llBox);
} else {
/** Default crs = EPSG:4326 */
CoordinateSystem crs = CRSFactory.create("EPSG:4326");
llBoundingBox = GeometryFactory.createEnvelope(-180, -90, 180, 90, crs);
}
Dimension[] dimensions = parseDimensions(layerElem);
Extent[] extents = parseExtents(layerElem);
Attribution attribution = parseAttribution(layerElem);
AuthorityURL[] authorityURLs = parseAuthorityURLs(layerElem);
MetadataURL[] metadataURLs = parseMetadataURLs(layerElem);
DataURL[] dataURLs = parseDataURL(layerElem);
Identifier[] identifiers = parseIdentifiers(layerElem);
FeatureListURL[] featureListURLs = parseFeatureListURL(layerElem);
Style[] styles = parseStyles(layerElem);
ScaleHint scaleHint = parseScaleHint(layerElem);
Layer layer =
new Layer(
queryable,
cascaded,
opaque,
noSubsets,
fixedWidth,
fixedHeight,
name,
title,
layerAbstract,
llBoundingBox,
attribution,
scaleHint,
keywords,
srs,
bboxes,
dimensions,
extents,
authorityURLs,
identifiers,
metadataURLs,
dataURLs,
featureListURLs,
styles,
null,
null,
parent);
// get Child layers
nl = XMLTools.getNodes(layerElem, "./Layer", nsContext);
Layer[] layers = new Layer[nl.size()];
for (int i = 0; i < layers.length; i++) {
layers[i] = parseLayers((Element) nl.get(i), layer);
}
// set child layers
layer.setLayer(layers);
LOG.exiting();
return layer;
}
