capabilities.java

来自「world wind java sdk 源码」· Java 代码 · 共 1,229 行 · 第 1/3 页

    public Double[] getLayerExtremeElevations(Capabilities caps, String[] layerNames)
    {
        if (caps == null)
        {
            String message = Logging.getMessage("nullValue.WMSCapabilities");
            Logging.logger().severe(message);
            throw new IllegalArgumentException(message);
        }

        if (layerNames == null)
        {
            String message = Logging.getMessage("nullValue.WMSLayerNames");
            Logging.logger().severe(message);
            throw new IllegalArgumentException(message);
        }

        String extremeMin = null;
        String extremeMax = null;

        for (String name : layerNames)
        {
            Element layer = caps.getLayerByName(name);
            if (layer == null)
                continue;

            String min = caps.getLayerExtremeElevationsMin(layer);
            if (min != null && (extremeMin == null || min.compareTo(min) > 0))
                extremeMin =  min;

            String max = caps.getLayerExtremeElevationsMax(layer);
            if (max != null && (extremeMax == null || max.compareTo(max) > 0))
                extremeMax =  max;
        }

        if (extremeMin != null || extremeMax != null)
        {
            try
            {
                Double[] extremes = new Double[] {null, null};

                if (extremeMin != null)
                    extremes[0] = Double.parseDouble(extremeMin);
                if (extremeMax != null)
                    extremes[1] = Double.parseDouble(extremeMax);

                return extremes;
            }
            catch (NumberFormatException e)
            {
                String message = Logging.getMessage("generic.ConversionError",
                    extremeMin != null ? extremeMin : "" + extremeMax != null ? extremeMax : "");
                Logging.logger().severe(message);
            }
        }

        return null;
    }

    // ********* Document Items ********* //

    public String getVersion()
    {
        return this.getText("*/@wms:version");
    }

    public String getUpdateSequence()
    {
        return this.getText("*/@wms:updateSequence");
    }

    // ********* Service Items ********* //

    public String getAbstract()
    {
        return this.getText(this.service, "wms:Abstract");
    }

    public String getAccessConstraints()
    {
        return this.getText(this.service, "wms:AccessConstraints");
    }

    public String getContactOrganization()
    {
        return this.getText(
            this.service, "wms:ContactInformation/wms:ContactPersonPrimary/wms:ContactOrganization");
    }

    public String getContactPerson()
    {
        return this.getText(
            this.service, "wms:ContactInformation/wms:ContactPersonPrimary/wms:ContactPerson");
    }

    public String getFees()
    {
        return this.getText(this.service, "wms:Fees");
    }

    public String[] getKeywordList()
    {
        return this.getTextArray(this.service, "wms:KeywordList/wms:Keyword");
    }

    public String getLayerLimit()
    {
        return this.getText(this.service, "wms:LayerLimit");
    }

    public String getMaxWidth()
    {
        return this.getText(this.service, "wms:MaxWidth");
    }

    public String getMaxHeight()
    {
        return this.getText(this.service, "wms:MaxHeight");
    }

    public String getServiceName()
    {
        return this.getText(this.service, "wms:Name");
    }

    public String getTitle()
    {
        return this.getText(this.service, "wms:Title");
    }

    // ********* Capability Items ********* //

    public String getOnlineResource()
    {
        return this.getText(this.capability, "wms:OnlineResource/@xlink:href");
    }

    public String[] getGetCapabilitiesFormats()
    {
        return this.getTextArray(this.capability,
            "wms:Request/wms:GetCapabilities/wms:Format");
    }

    public String getGetCapabilitiesRequestGetURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetCapabilities/wms:DCPType/wms:HTTP/wms:Get/wms:OnlineResource/@xlink:href");
    }

    public String getGetCapabilitiesRequestPostURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetCapabilities/wms:DCPType/wms:HTTP/wms:Post/wms:OnlineResource/@xlink:href");
    }

    public String[] getExceptionFormats()
    {
        return this.getTextArray(this.capability, "wms:Exception/wms:Format");
    }

    public String getFeatureInfoRequestGetURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetFeatureInfo/wms:DCPType/wms:HTTP/wms:Get/wms:OnlineResource/@xlink:href");
    }

    public String getFeatureInfoRequestPostURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetFeatureInfo/wms:DCPType/wms:HTTP/wms:Post/wms:OnlineResource/@xlink:href");
    }

    public String[] getGetMapFormats()
    {
        return this.getTextArray(this.capability,
            "wms:Request/wms:GetMap/wms:Format");
    }

    public String getGetMapRequestGetURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetMap/wms:DCPType/wms:HTTP/wms:Get/wms:OnlineResource/@xlink:href");
    }

    public String getGetMapRequestPostURL()
    {
        return this.getText(this.capability,
            "wms:Request/wms:GetMap/wms:DCPType/wms:HTTP/wms:Post/wms:OnlineResource/@xlink:href");
    }

    public String getVendorSpecificCapabilities()
    {
        return this.getText(this.capability, "wms:VendorSpecificCapabilities");
    }

    public Element getLayer()
    {
        return this.getElement(this.capability, "wms:Layer");
    }

    // ********* Layer Items ********* //

    protected static class Layer
    {
        protected HashMap<Element, Style> styleElements = new HashMap<Element, Style>();
        protected final Element element;
        protected Layer layer;
        protected String name;
        protected String title;

        public Layer(Element element)
        {
            this.element = element;
        }
    }

    public String getLayerAbstract(Element layer)
    {
        return this.getText(layer, "wms:Abstract");
    }

    public String getLayerAttributionTitle(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/wms:Attribution/wms:Title");
    }

    public String getLayerAttributionURL(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/wms:Attribution/wms:OnlineResource/@xlink:href");
    }

    public String getLayerAttributionLogoFormat(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/wms:Attribution/wms:LogoURL/wms:Format");
    }

    public String getLayerAttributionLogoHeight(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/wms:Attribution/wms:LogoURL/@wms:height");
    }

    public String getLayerAttributionLogoURL(Element layer)
    {
        return this.getText(layer,
            "ancestor-or-self::wms:Layer/wms:Attribution/wms:LogoURL/wms:OnlineResource/@xlink:href");
    }

    public String getLayerAttributionLogoWidth(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/wms:Attribution/wms:LogoURL/@wms:width");
    }

    public Element[] getLayerAuthorityURLs(Element layer)
    {
        return this.getUniqueElements(layer, "ancestor-or-self::wms:Layer/wms:AuthorityURL", "@wms:type");
    }

    public abstract BoundingBox[] getLayerBoundingBoxes(Element layer);

    public String getLayerCascaded(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@cascaded");
    }

    public String[] getLayerCRS(Element layer)
    {
        return this.getUniqueText(layer, "ancestor-or-self::wms:Layer/wms:CRS");
    }

    public String getLayerDataURLFormat(Element layer)
    {
        return this.getText(layer, "wms:DataURL/wms:Format");
    }

    public String getLayerDataURL(Element layer)
    {
        return this.getText(layer, "wms:DataURL/wms:OnlineResource/@xlink:href");
    }

    public Element[] getLayerDimensions(Element layer)
    {
        Element[] dims = this.getElements(layer, "ancestor-or-self::wms:Layer/wms:Dimension");

        if (dims == null || dims.length == 0)
            return null;

        ArrayList<Element> uniqueDims = new ArrayList<Element>();
        ArrayList<String> dimNames = new ArrayList<String>();
        for (Element e : dims)
        {
            // Filter out dimensions with same name.
            // Keep all those with a null name, even though wms says they're invalid. Let the app decide.
            String name = this.getDimensionName(e);
            if (name != null && dimNames.contains(name))
                continue;

            uniqueDims.add(e);
            dimNames.add(name);
        }

        return uniqueDims.toArray(new Element[uniqueDims.size()]);
    }

    public Element[] getLayerExtents(Element layer)
    {
        Element[] extents = this.getElements(layer, "ancestor-or-self::wms:Layer/wms:Extent");

        if (extents == null || extents.length == 0)
            return null;

        ArrayList<Element> uniqueExtents = new ArrayList<Element>();
        ArrayList<String> extentNames = new ArrayList<String>();
        for (Element e : extents)
        {
            // Filter out dimensions with same name.
            // Keep all those with a null name, even though wms says they're invalid. Let the app decide.
            String name = this.getDimensionName(e);
            if (name != null && extentNames.contains(name))
                continue;

            uniqueExtents.add(e);
            extentNames.add(name);
        }

        return uniqueExtents.toArray(new Element[uniqueExtents.size()]);
    }

    public abstract BoundingBox getLayerGeographicBoundingBox(Element layer);

    public String getLayerFeatureListFormat(Element layer)
    {
        return this.getText(layer, "wms:FeatureListURL/wms:Format");
    }

    public String getLayerFeatureListURL(Element layer)
    {
        return this.getText(layer, "wms:FeatureListURL/wms:OnlineResource/@xlink:href");
    }

    public String getLayerFixedHeight(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@fixedHeight");
    }

    public String getLayerFixedWidth(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@fixedWidth");
    }

    public Element[] getLayerIdentifiers(Element layer)
    {
        return this.getUniqueElements(layer, "wms:Identifier", "wms:authority");
    }

    public String[] getLayerKeywordList(Element layer)
    {
        return this.getTextArray(layer, "wms:KeywordList/wms:Keyword");
    }

    public abstract String getLayerMaxScaleDenominator(Element layer);

    public Element[] getLayerMetadataURLs(Element layer)
    {
        return this.getElements(layer, "wms:MetadataURL");
    }

    public abstract String getLayerMinScaleDenominator(Element layer);

    public String getLayerName(Element layerElement)
    {
        Layer layer = this.namedLayerElements.get(layerElement);
        return layer != null && layer.name != null ? layer.name : this.getText(layerElement, "wms:Name");
    }

    public String getLayerNoSubsets(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@noSubsets");
    }

    public String getLayerOpaque(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@opaque");
    }

    public String getLayerQueryable(Element layer)
    {
        return this.getText(layer, "ancestor-or-self::wms:Layer/@queryable");
    }

    public String[] getLayerSRS(Element layer)
    {
        return this.getUniqueText(layer, "ancestor-or-self::wms:Layer/wms:SRS");
    }

    public Element[] getLayerStyles(Element layerElement)
    {
        Layer layer = this.namedLayerElements.get(layerElement);
        if (layer == null)
            return null;

        if (layer.styleElements != null && layer.styleElements.size() != 0)
            return layer.styleElements.keySet().toArray(new Element[1]);

        Element[] styleElements = this.getUniqueElements(layerElement, "ancestor-or-self::wms:Layer/wms:Style", "Name");
        if (styleElements == null)
            return null;

        layer.styleElements = new HashMap<Element, Style>();
        for (Element se : styleElements)
        {