com.intellij.psi.xml.XmlFile#getDocument ( )源码实例Demo

@Nullable
private static String getNamespace(final XmlFile xmlFile, final Project project) {
    //Stupid HTTP module XSD weirdo
    if (xmlFile.getName().contains("mule-httpn.xsd"))
        return "http://www.mulesoft.org/schema/mule/http";
    /////

    final XmlDocument document = xmlFile.getDocument();
    if (document != null) {
        final PsiMetaData metaData = document.getMetaData();
        if (metaData instanceof XmlNSDescriptorImpl) {
            return ((XmlNSDescriptorImpl) metaData).getDefaultNamespace();
        }
    }
    return null;
}
 

private List<String> getGlobalDefinitions(VirtualFile file) {

        List<String> globalDefs = new ArrayList<>();

        final DomManager manager = DomManager.getDomManager(project);
        final XmlFile xmlFile = (XmlFile) PsiManager.getInstance(project).findFile(file);
        final XmlDocument document = xmlFile.getDocument();
        final XmlTag rootTag = document.getRootTag();

        try {
            final XmlTag globalFunctions = rootTag.findFirstSubTag("configuration")
                    .findFirstSubTag("expression-language")
                    .findFirstSubTag("global-functions");
            String nextFunction = globalFunctions.getValue().getText();
            if (nextFunction != null && StringUtils.isNotEmpty(nextFunction)) {
                globalDefs.add(nextFunction);
            }

        } catch (Exception e) {//If the global functions config does not exist, we get NPE - but it's expected :)
            //Do nothing for now
        }
        return globalDefs;
    }
 

public SVGParser(XmlFile svg, String dpi) {
    styles = new HashMap<String, String>();
    this.svg = svg;
    this.dpi = dpi;
    parseDimensions();

    XmlDocument document = svg.getDocument();
    if (document != null) {
        XmlTag rootTag = document.getRootTag();
        if (rootTag != null) {
            XmlTag[] subTags = rootTag.getSubTags();
            for (XmlTag tag : subTags) {
                getChildAttrs(tag);
            }
        }
    }
}
 

@Override
@NotNull
public Set<String> getAvailableNamespaces(@NotNull XmlFile file, @Nullable String tagName) {
    final Module module = ModuleUtil.findModuleForPsiElement(file);
    Map<String, XmlFile> schemas = getSchemas(module);
    Set<String> namespaces = new HashSet<>();

    try {
        for (XmlFile xsd : schemas.values()) {
            final XmlDocument document = xsd.getDocument();
            if (document != null) {
                final PsiMetaData metaData = document.getMetaData();
                if (metaData instanceof XmlNSDescriptorImpl) {
                    XmlNSDescriptorImpl descriptor = (XmlNSDescriptorImpl) metaData;
                    String defaultNamespace = descriptor.getDefaultNamespace();

                    //Stupid HTTP module XSD weirdo
                    if (xsd.getName().contains("mule-httpn"))
                        defaultNamespace = "http://www.mulesoft.org/schema/mule/http";
                    /////

                    if (StringUtils.isNotEmpty(defaultNamespace)) {
                        if (StringUtils.isNotEmpty(tagName)) {
                            XmlElementDescriptor elementDescriptor = descriptor.getElementDescriptor(tagName, defaultNamespace);
                            if (elementDescriptor != null) {
                                namespaces.add(defaultNamespace);
                            }
                        } else {
                            namespaces.add(defaultNamespace);
                        }
                    }
                }
            }
        }
    } catch (Exception e) {
        //e.printStackTrace();
    }
    return namespaces;
}
 

private static boolean isXSD(final XmlFile xmlFile) {
    final XmlDocument document = xmlFile.getDocument();
    if (document != null) {
        final PsiMetaData metaData = document.getMetaData();
        if (metaData instanceof XmlNSDescriptorImpl) {
            return true;
        }
    }
    return false;
}
 

public void transforming(CallBack callBack) {
    svgParser = new SVGParser(svg, dpi);
    styleParser = new StyleParser(svgParser.getStyles());

    Logger.debug(svgParser.toString());

    XmlFile dist = getDistXml();
    XmlDocument document = dist.getDocument();
    if (document != null && document.getRootTag() != null) {
        XmlTag rootTag = document.getRootTag();

        //set attr to root tag
        try {
            rootTag.getAttribute("android:width").setValue(svgParser.getWidth());
            rootTag.getAttribute("android:height").setValue(svgParser.getHeight());
            rootTag.getAttribute("android:viewportWidth").setValue(svgParser.getViewportWidth());
            rootTag.getAttribute("android:viewportHeight").setValue(svgParser.getViewportHeight());

            if (svgParser.getAlpha().length() > 0) {
                rootTag.setAttribute("android:alpha", svgParser.getAlpha());
            }
        } catch (NullPointerException npe) {
            //do nothing, because those attr is exist certainly.
        }

        //generate group
        if (svgParser.hasGroupTag()) {
            for (XmlTag g : svgParser.getGroups()) {
                parseGroup(g, rootTag);
            }
        } else {
            Logger.warn("Root tag has no subTag named 'group'");
            parseShapeNode(svg.getRootTag(), rootTag, null);
        }
        CodeStyleManager.getInstance(project).reformat(dist, true);
        callBack.onComplete(dist);
        Logger.debug(dist.toString());
    }
}
 

@Nullable
public static LatteXmlFileData parse(XmlFile file) {
    XmlDocument document = file.getDocument();
    if (document == null || document.getRootTag() == null) {
        return null;
    }

    XmlTag configuration = document.getRootTag();
    if (configuration == null) {
        return null;
    }

    LatteXmlFileData.VendorResult vendor = getVendor(document);
    if (vendor == null) {
        return null;
    }

    LatteXmlFileData data = new LatteXmlFileData(vendor);
    XmlTag tags = configuration.findFirstSubTag("tags");
    if (tags != null) {
        loadTags(tags, data);
    }
    XmlTag filters = configuration.findFirstSubTag("filters");
    if (filters != null) {
        loadFilters(filters, data);
    }
    XmlTag variables = configuration.findFirstSubTag("variables");
    if (variables != null) {
        loadVariables(variables, data);
    }
    XmlTag functions = configuration.findFirstSubTag("functions");
    if (functions != null) {
        loadFunctions(functions, data);
    }
    return data;
}
 

/**
 * Retrieves the list of dependent haxe libraries from an XML-based
 * configuration file.
 *
 * @param psiFile name of the configuration file to read
 * @return a list of dependent libraries; may be empty, won't have duplicates.
 */
@NotNull
public static HaxeLibraryList getHaxelibsFromXmlFile(@NotNull XmlFile psiFile, HaxelibLibraryCache libraryManager) {
  List<HaxeLibraryReference> haxelibNewItems = new ArrayList<HaxeLibraryReference>();

  XmlFile xmlFile = (XmlFile)psiFile;
  XmlDocument document = xmlFile.getDocument();

  if (document != null) {
    XmlTag rootTag = document.getRootTag();
    if (rootTag != null) {
      XmlTag[] haxelibTags = rootTag.findSubTags("haxelib");
      for (XmlTag haxelibTag : haxelibTags) {
        String name = haxelibTag.getAttributeValue("name");
        String ver = haxelibTag.getAttributeValue("version");
        HaxelibSemVer semver = HaxelibSemVer.create(ver);
        if (name != null) {
          HaxeLibrary lib = libraryManager.getLibrary(name, semver);
          if (lib != null) {
            haxelibNewItems.add(lib.createReference(semver));
          } else {
            LOG.warn("Library specified in XML file is not known to haxelib: " + name);
          }
        }
      }
    }
  }

  return new HaxeLibraryList(libraryManager.getSdk(), haxelibNewItems);
}