| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.jena.rdfxml.xmloutput.impl; |
| |
| import java.io.OutputStream ; |
| import java.io.OutputStreamWriter ; |
| import java.io.PrintWriter ; |
| import java.io.Writer ; |
| import java.util.* ; |
| import java.util.Map.Entry ; |
| import java.util.regex.Pattern ; |
| |
| import org.apache.jena.JenaRuntime ; |
| import org.apache.jena.irix.IRIException; |
| import org.apache.jena.irix.IRIProviderJenaIRI.IRIxJena; |
| import org.apache.jena.irix.IRIs; |
| import org.apache.jena.irix.IRIx; |
| import org.apache.jena.rdf.model.* ; |
| import org.apache.jena.rdf.model.impl.RDFDefaultErrorHandler ; |
| import org.apache.jena.rdf.model.impl.ResourceImpl ; |
| import org.apache.jena.rdf.model.impl.Util ; |
| import org.apache.jena.rdfxml.xmloutput.RDFXMLWriterI ; |
| import org.apache.jena.shared.* ; |
| import org.apache.jena.util.CharEncoding ; |
| import org.apache.jena.util.FileUtils ; |
| import org.apache.jena.util.SplitIRI; |
| import org.apache.jena.util.XMLChar; |
| import org.apache.jena.vocabulary.* ; |
| import org.slf4j.Logger ; |
| import org.slf4j.LoggerFactory ; |
| |
| /** |
| * This is not part of the public API. |
| * Base class for XML serializers. |
| * All methods with side-effects should be synchronized in this class and its |
| * subclasses. (i. e. XMLWriters assume that the world is not changing around |
| * them while they are writing). |
| * |
| * Functionality: |
| * |
| * <ul> |
| * <li>setProperty etc |
| * <li>namespace prefixes |
| * <li>xmlbase |
| * <li>relative URIs |
| * <li>encoding issues |
| * <li>anonymous node presentational |
| * <li>errorHandler |
| * </ul> |
| */ |
| abstract public class BaseXMLWriter implements RDFXMLWriterI { |
| |
| private static final String newline = |
| JenaRuntime.getSystemProperty( "line.separator" ); |
| static private final String DEFAULT_NS_ENTITY_NAME = "this"; |
| static private final String DEFAULT_NS_ENTITY_NAME_ALT = "here"; |
| private String defaultNSEntityName = "UNSET" ; |
| |
| public BaseXMLWriter() { |
| setupMaps(); |
| } |
| |
| private static Logger xlogger = LoggerFactory.getLogger( BaseXMLWriter.class ); |
| |
| protected static SimpleLogger logger = new SimpleLogger() { |
| @Override |
| public void warn(String s) { |
| xlogger.warn(s); |
| } |
| @Override |
| public void warn(String s, Exception e) { |
| xlogger.warn(s,e); |
| } |
| }; |
| |
| public static SimpleLogger setLogger(SimpleLogger lg) { |
| SimpleLogger old = logger; |
| logger= lg; |
| return old; |
| } |
| |
| abstract protected void unblockAll(); |
| |
| abstract protected void blockRule(Resource r); |
| |
| abstract protected void writeBody |
| ( Model mdl, PrintWriter pw, String baseUri, boolean inclXMLBase ); |
| |
| static private Set<String> badRDF = Set.of("RDF", |
| "Description", |
| "li", |
| "about", |
| "aboutEach", |
| "aboutEachPrefix", |
| "ID", |
| "nodeID", |
| "parseType", |
| "datatype", |
| "bagID", |
| "resource"); |
| |
| /** |
| Counter used for allocating Jena transient namespace declarations. |
| */ |
| private int jenaPrefixCount; |
| |
| static String RDFNS = RDF.getURI(); |
| |
| |
| static private final Pattern jenaNamespace = Pattern.compile("j\\.([1-9][0-9]*|cook\\.up)"); |
| |
| String xmlBase = null; |
| |
| private IRIx baseURI; |
| |
| boolean longId = false; |
| |
| private boolean demandGoodURIs = true; |
| |
| int tabSize = 2; |
| |
| int width = 60; |
| |
| HashMap<AnonId, String> anonMap = new HashMap<>(); |
| |
| int anonCount = 0; |
| |
| static private RDFDefaultErrorHandler defaultErrorHandler = |
| new RDFDefaultErrorHandler(); |
| |
| RDFErrorHandler errorHandler = defaultErrorHandler; |
| |
| Boolean showXmlDeclaration = null; |
| |
| protected Boolean showDoctypeDeclaration = Boolean.FALSE; |
| |
| /* |
| * There are two sorts of id's for anonymous resources. Short id's are the |
| * default, but require a mapping table. The mapping table means that |
| * serializing a large model could run out of memory. Long id's require no |
| * mapping table, but are less readable. |
| */ |
| |
| String anonId(Resource r) { |
| return longId ? longAnonId( r ) : shortAnonId( r ); |
| } |
| |
| /* |
| * A shortAnonId is computed by maintaining a mapping table from the internal |
| * id's of anon resources. The short id is the index into the table of the |
| * internal id. |
| */ |
| private String shortAnonId(Resource r) { |
| String result = anonMap.get(r.getId()); |
| if (result == null) { |
| result = "A" + Integer.toString(anonCount++); |
| anonMap.put(r.getId(), result); |
| } |
| return result; |
| } |
| |
| /* |
| * A longAnonId is the internal id of the anon resource expressed as a |
| * character string. |
| * |
| * This code makes no assumptions about the characters used in the |
| * implementation of an anon id. It checks if they are valid namechar |
| * characters and escapes the id if not. |
| */ |
| |
| private String longAnonId(Resource r) { |
| String rid = r.getId().toString(); |
| return XMLChar.isValidNCName( rid ) ? rid : escapedId( rid ); |
| } |
| |
| /** |
| true means all namespaces defined in the model prefixes will be noted in xmlns |
| declarations; false means only "required" ones will be noted. Hook for configuration. |
| */ |
| private boolean writingAllModelPrefixNamespaces = true; |
| |
| private Relation<String> nameSpaces = new Relation<>(); |
| |
| private Map<String, String> ns; |
| |
| private PrefixMapping modelPrefixMapping; |
| |
| private Set<String> namespacesNeeded; |
| |
| void addNameSpace(String uri) { |
| namespacesNeeded.add(uri); |
| } |
| |
| boolean isDefaultNamespace( String uri ) { |
| return "".equals( ns.get( uri ) ); |
| } |
| |
| private void addNameSpaces( Model model ) { |
| NsIterator nsIter = model.listNameSpaces(); |
| while (nsIter.hasNext()) this.addNameSpace( nsIter.nextNs() ); |
| } |
| |
| private void primeNamespace(Model model) { |
| Map<String, String> m = model.getNsPrefixMap(); |
| for ( Entry<String, String> e : m.entrySet() ) { |
| String value = e.getValue(); |
| String already = this.getPrefixFor(value); |
| if ( already == null ) { |
| this.setNsPrefix(model.getNsURIPrefix(value), value); |
| if ( writingAllModelPrefixNamespaces ) { |
| this.addNameSpace(value); |
| } |
| } |
| } |
| |
| if ( usesPrefix(model, "") ) { |
| // Doing "" prefix. Ensure it is a non-clashing, non-empty entity name. |
| String entityForEmptyPrefix = DEFAULT_NS_ENTITY_NAME; |
| if ( usesPrefix(model, entityForEmptyPrefix) ) |
| entityForEmptyPrefix = DEFAULT_NS_ENTITY_NAME_ALT; |
| int i = 0; |
| while (usesPrefix(model, entityForEmptyPrefix)) { |
| entityForEmptyPrefix = DEFAULT_NS_ENTITY_NAME_ALT + "." + i; |
| i++; |
| } |
| defaultNSEntityName = entityForEmptyPrefix; |
| } |
| } |
| |
| void setupMaps() { |
| nameSpaces.set11(RDF.getURI(), "rdf"); |
| nameSpaces.set11(RDFS.getURI(), "rdfs"); |
| nameSpaces.set11(DC.getURI(), "dc"); |
| nameSpaces.set11(RSS.getURI(), "rss"); |
| nameSpaces.set11("http://www.daml.org/2001/03/daml+oil.daml#", "daml"); |
| nameSpaces.set11(VCARD.getURI(), "vcard"); |
| nameSpaces.set11("http://www.w3.org/2002/07/owl#", "owl"); |
| } |
| |
| void workOutNamespaces() { |
| if (ns == null) { |
| ns = new HashMap<>(); |
| Set<String> prefixesUsed = new HashSet<>(); |
| setFromWriterSystemProperties( ns, prefixesUsed ); |
| setFromGivenNamespaces( ns, prefixesUsed ); |
| } |
| } |
| |
| private void setFromWriterSystemProperties( Map<String, String> ns, Set<String> prefixesUsed ) { |
| for ( String uri : namespacesNeeded ) |
| { |
| String val = JenaRuntime.getSystemProperty( RDFWriterI.NSPREFIXPROPBASE + uri ); |
| if ( val != null && checkLegalPrefix( val ) && !prefixesUsed.contains( val ) ) |
| { |
| ns.put( uri, val ); |
| prefixesUsed.add( val ); |
| } |
| } |
| } |
| |
| private void setFromGivenNamespaces( Map<String, String> ns, Set<String> prefixesUsed ) { |
| for ( String uri : namespacesNeeded ) { |
| if ( ns.containsKey(uri) ) { |
| continue; |
| } |
| String val = null; |
| Set<String> s = nameSpaces.forward(uri); |
| if ( s != null ) { |
| Iterator<String> it2 = s.iterator(); |
| if ( it2.hasNext() ) { |
| val = it2.next(); |
| } |
| if ( prefixesUsed.contains(val) ) { |
| val = null; |
| } |
| } |
| if ( val == null ) { |
| // just in case the prefix has already been used, look for a free |
| // one. |
| // (the usual source of such prefixes is reading in a model we wrote |
| // out earlier) |
| do { |
| val = "j." + (jenaPrefixCount++); |
| } while (prefixesUsed.contains(val)); |
| } |
| ns.put(uri, val); |
| prefixesUsed.add(val); |
| } |
| } |
| |
| final synchronized public void setNsPrefix(String prefix, String ns) { |
| if (checkLegalPrefix(prefix)) { |
| nameSpaces.set11(ns, prefix); |
| } |
| } |
| |
| final public String getPrefixFor( String uri ) { |
| // xml and xmlns namespaces are pre-bound |
| if ("http://www.w3.org/XML/1998/namespace".equals(uri)) return "xml"; |
| if ("http://www.w3.org/2000/xmlns/".equals(uri)) return "xmlns"; |
| Set<String> s = nameSpaces.backward( uri ); |
| if (s != null && s.size() == 1) return s.iterator().next(); |
| return null; |
| } |
| |
| String xmlnsDecl() { |
| workOutNamespaces(); |
| StringBuilder result = new StringBuilder(); |
| Iterator<Entry<String, String>> it = ns.entrySet().iterator(); |
| while (it.hasNext()) { |
| Entry<String, String> ent = it.next(); |
| String prefix = ent.getValue(); |
| String uri = ent.getKey(); |
| result.append( newline ).append( " xmlns" ); |
| if (prefix.length() > 0) result.append( ':' ).append( prefix ); |
| result.append( '=' ).append( substitutedAttribute( checkURI( uri ) ) ); |
| } |
| return result.toString(); |
| } |
| |
| static final private int FAST = 1; |
| static final private int START = 2; |
| static final private int END = 3; |
| static final private int ATTR = 4; |
| static final private int FASTATTR = 5; |
| |
| String rdfEl(String local) { |
| return tag(RDFNS, local, FAST, true); |
| } |
| |
| String startElementTag(String uri, String local) { |
| return tag(uri, local, START, false); |
| } |
| |
| protected String startElementTag(String uriref) { |
| return splitTag(uriref, START); |
| } |
| |
| String attributeTag(String uriref) { |
| return splitTag(uriref, ATTR); |
| } |
| |
| String attributeTag(String uri, String local) { |
| return tag(uri, local, ATTR, false); |
| } |
| |
| String rdfAt(String local) { |
| return tag(RDFNS, local, FASTATTR, true); |
| } |
| |
| String endElementTag(String uri, String local) { |
| return tag(uri, local, END, false); |
| } |
| |
| protected String endElementTag(String uriref) { |
| return splitTag(uriref, END); |
| } |
| |
| String splitTag(String uriref, int type) { |
| int split = SplitIRI.splitXML( uriref ); |
| if (split == uriref.length()) throw new InvalidPropertyURIException( uriref ); |
| return tag( uriref.substring( 0, split ), uriref.substring( split ), type, true ); |
| } |
| |
| String tag( String namespace, String local, int type, boolean localIsQname) { |
| if (type != FAST && type != FASTATTR) { |
| if ((!localIsQname) && !XMLChar.isValidNCName(local)) |
| return splitTag(namespace + local, type); |
| if (namespace.equals(RDFNS)) { |
| // Description, ID, nodeID, about, aboutEach, aboutEachPrefix, li |
| // bagID parseType resource datatype RDF |
| if (badRDF.contains(local)) { |
| logger.warn( "The URI rdf:" + local + " cannot be serialized in RDF/XML." ); |
| throw new InvalidPropertyURIException( "rdf:" + local ); |
| } |
| } |
| } |
| String prefix = ns.get( namespace ); |
| boolean cookUp = false; |
| if (prefix == null) { |
| checkURI( namespace ); |
| logger.warn("Internal error: unexpected QName URI: <" + namespace + ">. Fixing up.", |
| new BrokenException( "unexpected QName URI " + namespace )); |
| cookUp = true; |
| } else if (prefix.length() == 0) { |
| if (type == ATTR || type == FASTATTR) |
| cookUp = true; |
| else |
| return local; |
| } |
| if (cookUp) return cookUpAttribution( type, namespace, local ); |
| return prefix + ":" + local; |
| } |
| |
| private String cookUpAttribution( int type, String namespace, String local ) { |
| String prefix = "j.cook.up"; |
| switch (type) { |
| case FASTATTR : |
| case ATTR : |
| return "xmlns:" + prefix + "=" + substitutedAttribute( namespace ) + " " + prefix + ":" + local; |
| case START : |
| return prefix + ":" + local + " xmlns:" + prefix+ "=" + substitutedAttribute( namespace ); |
| default: |
| case END : |
| return prefix + ":" + local; |
| case FAST : |
| // logger.error("Unreachable code - reached."); |
| throw new BrokenException( "cookup reached final FAST" ); |
| } |
| } |
| |
| /** Write out an XML serialization of a model. |
| * @param model the model to be serialized |
| * @param out the OutputStream to receive the serialization |
| * @param base The URL at which the file will be placed. |
| */ |
| @Override |
| final public void write(Model model, OutputStream out, String base) |
| { write( model, FileUtils.asUTF8(out), base ); } |
| |
| /** Serialize Model <code>model</code> to Writer <code>out</code>. |
| * @param model The model to be written. |
| * @param out The Writer to which the serialization should be sent. |
| * @param base the base URI for relative URI calculations. <code>null</code> means use only absolute URI's. |
| */ |
| @Override |
| synchronized public void write(Model model, Writer out, String base) { |
| setupNamespaces(model); |
| PrintWriter pw = out instanceof PrintWriter ? (PrintWriter)out : new PrintWriter(out); |
| if ( !Boolean.FALSE.equals(showXmlDeclaration) ) |
| writeXMLDeclaration(out, pw); |
| writeXMLBody(model, pw, base); |
| pw.flush(); |
| } |
| |
| /** |
| @param baseModel |
| @param model |
| */ |
| private void setupNamespaces(Model model) { |
| this.namespacesNeeded = new HashSet<>(); |
| this.ns = null; |
| this.modelPrefixMapping = model; |
| primeNamespace(model); |
| addNameSpace(RDF.getURI()); |
| addNameSpaces(model); |
| jenaPrefixCount = 0; |
| } |
| |
| private void writeXMLBody( Model model, PrintWriter pw, String base ) { |
| if (showDoctypeDeclaration.booleanValue()) |
| generateDoctypeDeclaration( model, pw ); |
| |
| if (xmlBase == null) { |
| baseURI = (base == null || base.length() == 0) ? null : IRIx.create(base); |
| writeBody(model, pw, base, false); |
| } else { |
| baseURI = xmlBase.length() == 0 ? null : IRIx.create(xmlBase); |
| writeBody(model, pw, xmlBase, true); |
| } |
| } |
| |
| protected static final Pattern predefinedEntityNames = Pattern.compile( "amp|lt|gt|apos|quot" ); |
| |
| public boolean isPredefinedEntityName( String name ) |
| { return predefinedEntityNames.matcher( name ).matches(); } |
| |
| private String attributeQuoteChar ="\""; |
| |
| protected String attributeQuoted( String s ) |
| { return attributeQuoteChar + s + attributeQuoteChar; } |
| |
| protected String substitutedAttribute( String s ) { |
| String substituted = Util.substituteStandardEntities( s ); |
| if (!showDoctypeDeclaration.booleanValue()) |
| return attributeQuoted( substituted ); |
| else { |
| int split = SplitIRI.splitXML( substituted ); |
| String namespace = substituted.substring( 0, split ); |
| String prefix = modelPrefixMapping.getNsURIPrefix( namespace ); |
| return prefix == null || isPredefinedEntityName( prefix ) |
| ? attributeQuoted( substituted ) |
| : attributeQuoted( "&" + strForPrefix(prefix) + ";" + substituted.substring( split ) ) |
| ; |
| } |
| } |
| |
| private void generateDoctypeDeclaration( Model model, PrintWriter pw ) { |
| String rdfns = RDF.getURI(); |
| String rdfRDF = model.qnameFor( rdfns + "RDF" ); |
| if ( rdfRDF == null ) { |
| model.setNsPrefix("rdf",rdfns); |
| rdfRDF = "rdf:RDF"; |
| } |
| Map<String, String> prefixes = model.getNsPrefixMap(); |
| pw.print( "<!DOCTYPE " + rdfRDF +" [" ); |
| for ( String prefix : prefixes.keySet() ) { |
| if ( isPredefinedEntityName( prefix ) ) |
| continue; |
| pw.print(newline |
| + " <!ENTITY " + strForPrefix( prefix ) + " '" + Util.substituteEntitiesInEntityValue(prefixes.get( prefix ) ) |
| + "'>" ); |
| } |
| pw.print( "]>" + newline ); |
| } |
| |
| private String strForPrefix(String prefix) { |
| if ( prefix.length() == 0 ) |
| return defaultNSEntityName; |
| return prefix; |
| } |
| |
| private static boolean usesPrefix(Model model, String prefix) { |
| return model.getNsPrefixURI(prefix) != null; |
| } |
| |
| private void writeXMLDeclaration(Writer out, PrintWriter pw) { |
| String decl = null; |
| if (out instanceof OutputStreamWriter) { |
| String javaEnc = ((OutputStreamWriter) out).getEncoding(); |
| if (!(javaEnc.equals("UTF8") || javaEnc.equals("UTF-16"))) { |
| CharEncoding encodingInfo = CharEncoding.create(javaEnc); |
| |
| String ianaEnc = encodingInfo.name(); |
| decl = "<?xml version="+attributeQuoted("1.0")+" encoding=" + attributeQuoted(ianaEnc) + "?>"; |
| if (!encodingInfo.isIANA()) |
| logger.warn(encodingInfo.warningMessage()+"\n"+ |
| " It is better to use a FileOutputStream, in place of a FileWriter."); |
| |
| } |
| } |
| if (decl == null && showXmlDeclaration != null) |
| decl = "<?xml version="+attributeQuoted("1.0")+"?>"; |
| if (decl != null) { |
| pw.println(decl); |
| } |
| } |
| |
| /** Set an error handler. |
| * @param errHandler The new error handler to be used, or null for the default handler. |
| * @return the old error handler |
| */ |
| @Override |
| synchronized public RDFErrorHandler setErrorHandler(RDFErrorHandler errHandler) { |
| // null means no user defined error handler. |
| // We implement this using defaultErrorHandler, |
| // but hide this fact from the user. |
| RDFErrorHandler rslt = errorHandler; |
| if (rslt == defaultErrorHandler) rslt = null; |
| errorHandler = errHandler == null ? defaultErrorHandler : errHandler; |
| return rslt; |
| } |
| |
| static private final char ESCAPE = 'X'; |
| |
| static private String escapedId(String id) { |
| StringBuffer result = new StringBuffer(); |
| for (int i = 0; i < id.length(); i++) { |
| char ch = id.charAt(i); |
| if (ch != ESCAPE |
| && (i == 0 ? XMLChar.isNCNameStart(ch) : XMLChar.isNCName(ch))) { |
| result.append( ch ); |
| } else { |
| escape( result, ch ); |
| } |
| } |
| return result.toString(); |
| } |
| |
| static final char [] hexchar = "0123456789abcdef".toCharArray(); |
| |
| static private void escape( StringBuffer sb, char ch) { |
| sb.append( ESCAPE ); |
| int charcode = ch; |
| do { |
| sb.append( hexchar[charcode & 15] ); |
| charcode = charcode >> 4; |
| } while (charcode != 0); |
| sb.append( ESCAPE ); |
| } |
| |
| /** |
| Set the writer property propName to the value obtained from propValue. Return an |
| Object representation of the original value. |
| |
| @see org.apache.jena.rdf.model.RDFWriterI#setProperty(java.lang.String, java.lang.Object) |
| */ |
| @Override |
| final synchronized public Object setProperty( String propName, Object propValue ) { |
| if (propName.equalsIgnoreCase("showXmlDeclaration")) { |
| return setShowXmlDeclaration(propValue); |
| } else if (propName.equalsIgnoreCase( "showDoctypeDeclaration" )) { |
| return setShowDoctypeDeclaration( propValue ); |
| } else if (propName.equalsIgnoreCase( "minimalPrefixes" )) { |
| try { return Boolean.valueOf( !writingAllModelPrefixNamespaces ); } |
| finally { writingAllModelPrefixNamespaces = !getBoolean( propValue ); } |
| } else if (propName.equalsIgnoreCase("xmlbase")) { |
| String result = xmlBase; |
| xmlBase = (String) propValue; |
| return result; |
| } else if (propName.equalsIgnoreCase("tab")) { |
| return setTab( propValue ); |
| } else if (propName.equalsIgnoreCase("width")) { |
| return setWidth(propValue); |
| } else if (propName.equalsIgnoreCase("longid")) { |
| Boolean result = Boolean.valueOf(longId); |
| longId = getBoolean(propValue); |
| return result; |
| } else if (propName.equalsIgnoreCase("attributeQuoteChar")) { |
| return setAttributeQuoteChar(propValue); |
| } else if (propName.equalsIgnoreCase( "allowBadURIs" )) { |
| Boolean result = Boolean.valueOf( !demandGoodURIs ); |
| demandGoodURIs = !getBoolean(propValue); |
| return result; |
| } else if (propName.equalsIgnoreCase("prettyTypes")) { |
| return setTypes((Resource[]) propValue); |
| } else if (propName.equalsIgnoreCase("relativeURIs")) { |
| int old = relativeFlags; |
| relativeFlags = str2flags((String) propValue); |
| return flags2str(old); |
| } else if (propName.equalsIgnoreCase("blockRules")) { |
| return setBlockRules(propValue); |
| } else { |
| logger.warn("Unsupported property: " + propName); |
| return null; |
| } |
| } |
| |
| private String setAttributeQuoteChar(Object propValue) { |
| String oldValue = attributeQuoteChar; |
| if ( "\"".equals(propValue) || "'".equals(propValue) ) |
| attributeQuoteChar = (String)propValue; |
| else |
| logger.warn("attributeQutpeChar must be either \"\\\"\" or \', not \""+propValue+"\"" ); |
| return oldValue; |
| } |
| |
| private Integer setWidth(Object propValue) { |
| Integer oldValue = Integer.valueOf(width); |
| if (propValue instanceof Integer) { |
| width = ((Integer) propValue).intValue(); |
| } else { |
| try { |
| width = Integer.parseInt((String) propValue); |
| } catch (Exception e) { |
| logger.warn( "Bad value for width: '" + propValue + "' [" + e.getMessage() + "]" ); |
| } |
| } |
| return oldValue; |
| } |
| |
| private Integer setTab(Object propValue) { |
| Integer result = Integer.valueOf(tabSize); |
| if (propValue instanceof Integer) { |
| tabSize = ((Integer) propValue).intValue(); |
| } else { |
| try { |
| tabSize = Integer.parseInt((String) propValue); |
| } catch (Exception e) { |
| logger.warn( "Bad value for tab: '" + propValue + "' [" + e.getMessage() + "]" ); |
| } |
| } |
| return result; |
| } |
| |
| private String setShowDoctypeDeclaration(Object propValue) { |
| String oldValue = showDoctypeDeclaration.toString(); |
| showDoctypeDeclaration = getBooleanValue( propValue, Boolean.FALSE ); |
| return oldValue; |
| } |
| |
| private String setShowXmlDeclaration( Object propValue ) { |
| String oldValue = showXmlDeclaration == null ? null : showXmlDeclaration.toString(); |
| showXmlDeclaration = getBooleanValue( propValue, null ); |
| return oldValue; |
| } |
| |
| /** |
| Answer the boolean value corresponding to o, which must either be a Boolean, |
| or a String parsable as a Boolean. |
| */ |
| static private boolean getBoolean( Object o ) |
| { return getBooleanValue( o, Boolean.FALSE ).booleanValue(); } |
| |
| private static Boolean getBooleanValue( Object propValue, Boolean theDefault ) { |
| if (propValue == null) |
| return theDefault; |
| else if (propValue instanceof Boolean) |
| return (Boolean) propValue; |
| else if (propValue instanceof String) |
| return stringToBoolean( (String) propValue, theDefault ); |
| else |
| throw new JenaException( "cannot treat as boolean: " + propValue ); |
| } |
| |
| private static Boolean stringToBoolean( String b, Boolean theDefault ) { |
| if (b.equals( "default" )) return theDefault; |
| if (b.equalsIgnoreCase( "true" )) return Boolean.TRUE; |
| if (b.equalsIgnoreCase( "false" )) return Boolean.FALSE; |
| throw new BadBooleanException( b ); |
| } |
| |
| Resource[] setTypes( Resource x[] ) { |
| logger.warn( "prettyTypes is not a property on the Basic RDF/XML writer." ); |
| return null; |
| } |
| |
| private Resource blockedRules[] = new Resource[]{RDFSyntax.propertyAttr}; |
| |
| Resource[] setBlockRules(Object o) { |
| Resource rslt[] = blockedRules; |
| unblockAll(); |
| if (o instanceof Resource[]) { |
| blockedRules = (Resource[]) o; |
| } else { |
| StringTokenizer tkn = new StringTokenizer((String) o, ", "); |
| Vector<Resource> v = new Vector<>(); |
| while (tkn.hasMoreElements()) { |
| String frag = tkn.nextToken(); |
| v.add(new ResourceImpl(RDFSyntax.getURI() + frag)); |
| } |
| |
| blockedRules = new Resource[v.size()]; |
| v.copyInto(blockedRules); |
| } |
| for ( Resource blockedRule : blockedRules ) |
| { |
| blockRule( blockedRule ); |
| } |
| return rslt; |
| } |
| |
| // Copy from jena-iri IRIRelativize for isolation from IRIx provider usge. |
| private class IRIRelativize { |
| /** Allow same document references (e.g. "" or "#frag").*/ |
| static final public int SAMEDOCUMENT = 1; |
| |
| /** Allow network relative references (e.g. "//example.org/a/b/c"). */ |
| static final public int NETWORK = 2; |
| |
| /** Allow absolute relative references (e.g. "/a/b/c"). */ |
| static final public int ABSOLUTE = 4; |
| |
| /** Allow child relative references (e.g. "b/c"). */ |
| static final public int CHILD = 8; |
| |
| /** Allow parent relative references (e.g. "../b/c"). */ |
| |
| static final public int PARENT = 16; |
| |
| /** Allow grandparent relative references (e.g. "../../b/c"). */ |
| static final public int GRANDPARENT = 32; |
| } |
| |
| /* |
| private boolean sameDocument = true; |
| private boolean network = false; |
| private boolean absolute = true; |
| private boolean relative = true; |
| private boolean parent = true; |
| private boolean grandparent = false; |
| */ |
| //private int relativeFlags = 0; |
| private int dftRelativeFlags = IRIRelativize.SAMEDOCUMENT | IRIRelativize.ABSOLUTE | IRIRelativize.CHILD | IRIRelativize.PARENT; |
| private int relativeFlags = dftRelativeFlags; |
| |
| /** |
| Answer the form of the URI after relativiation according to the relativeFlags set |
| by properties. If the flags are 0 or the base URI is null, answer the original URI. |
| Throw an exception if the URI is "bad" and we demandGoodURIs. |
| */ |
| protected String relativize( String uri ) { |
| return relativeFlags != 0 && baseURI != null |
| ? relativize( baseURI, uri ) |
| : checkURI( uri ); |
| } |
| |
| /** |
| Answer the relative form of the URI against the base, according to the relativeFlags. |
| */ |
| private String relativize( IRIx base, String uri ) { |
| if ( relativeFlags == 0 ) |
| return uri; |
| // If jena-iri |
| if ( base instanceof IRIxJena ) { |
| org.apache.jena.iri.IRI baseImpl = ((IRIxJena)base).getImpl(); |
| return baseImpl.relativize(uri, relativeFlags).toString(); |
| } |
| try { |
| if ( relativeFlags != dftRelativeFlags ) { |
| // Use jena-iri for relativization. Backwards compatibility. |
| org.apache.jena.iri.IRI baseImpl = org.apache.jena.iri.IRIFactory.iriImplementation().create(base.str()); |
| return baseImpl.relativize(uri, relativeFlags).toString(); |
| } |
| // if ( relativeFlags == 1 ) { |
| // IRI3986 iri1 = IRI3986.create(base.str()); |
| // IRI3986 iri2 = IRI3986.create(uri); |
| // IRI3986 x = AlgIRI2.relativeSameDocument(iri1, iri2); |
| // return x!=null ? x.str() : uri; |
| // } |
| // if ( relativeFlags == 4 ) { |
| // IRI3986 iri1 = IRI3986.create(base.str()); |
| // IRI3986 iri2 = IRI3986.create(uri); |
| // IRI3986 x = AlgIRI2.relativeResource(iri1, iri2); |
| // return x!=null ? x.str() : uri; |
| // } |
| // if ( relativeFlags == 8 ) { |
| // IRI3986 iri1 = IRI3986.create(base.str()); |
| // IRI3986 iri2 = IRI3986.create(uri); |
| // IRI3986 x = AlgIRI2.relativePath(iri1, iri2); |
| // return x!=null ? x.str() : uri; |
| // } |
| |
| IRIx x = base.relativize( IRIx.create(uri) ); |
| return x != null ? x.str() : uri ; |
| } catch (IRIException ex) { |
| return uri; |
| } |
| } |
| |
| /** |
| Answer the argument URI, but if we demandGoodURIs and it isn't good, throw |
| a JenaException that encapsulates a MalformedURIException. There doesn't |
| appear to be a convenient URI.checkGood() kind of method, alas. |
| */ |
| private String checkURI( String uri ) { |
| if (demandGoodURIs) |
| // Valid or exception. |
| IRIs.checkEx(uri); |
| return uri; |
| } |
| |
| /** |
| Answer true iff prefix is a "legal" prefix to use, ie, is empty [for the default namespace] |
| or an NCName that does not start with "xml" and does not match the reserved-to-Jena |
| pattern. |
| */ |
| private boolean checkLegalPrefix( String prefix ) { |
| if (prefix.equals("")) |
| return true; |
| if (prefix.toLowerCase().startsWith( "xml" )) |
| logger.warn( "Namespace prefix '" + prefix + "' is reserved by XML." ); |
| else if (!XMLChar.isValidNCName(prefix)) |
| logger.warn( "'" + prefix + "' is not a legal namespace prefix." ); |
| else if (jenaNamespace.matcher(prefix).matches()) |
| logger.warn( "Namespace prefix '" + prefix + "' is reserved by Jena." ); |
| else |
| return true; |
| return false; |
| } |
| |
| |
| static private String flags2str(int f) { |
| StringBuffer oldValue = new StringBuffer(64); |
| if ( (f&IRIRelativize.SAMEDOCUMENT)!=0 ) |
| oldValue.append( "same-document, " ); |
| if ( (f&IRIRelativize.NETWORK)!=0 ) |
| oldValue.append( "network, "); |
| if ( (f&IRIRelativize.ABSOLUTE)!=0 ) |
| oldValue.append("absolute, "); |
| if ( (f&IRIRelativize.CHILD)!=0 ) |
| oldValue.append("relative, "); |
| if ((f&IRIRelativize.PARENT)!=0) |
| oldValue.append("parent, "); |
| if ((f&IRIRelativize.GRANDPARENT)!=0) |
| oldValue.append("grandparent, "); |
| if (oldValue.length() > 0) |
| oldValue.setLength(oldValue.length()-2); |
| return oldValue.toString(); |
| } |
| |
| public static int str2flags(String pv){ |
| StringTokenizer tkn = new StringTokenizer(pv,", "); |
| int rslt = 0; |
| while ( tkn.hasMoreElements() ) { |
| String flag = tkn.nextToken(); |
| if ( flag.equals("same-document") ) |
| rslt |= IRIRelativize.SAMEDOCUMENT; |
| else if ( flag.equals("network") ) |
| rslt |= IRIRelativize.NETWORK; |
| else if ( flag.equals("absolute") ) |
| rslt |= IRIRelativize.ABSOLUTE; |
| else if ( flag.equals("relative") ) |
| rslt |= IRIRelativize.CHILD; |
| else if ( flag.equals("parent") ) |
| rslt |= IRIRelativize.PARENT; |
| else if ( flag.equals("grandparent") ) |
| rslt |= IRIRelativize.GRANDPARENT; |
| else |
| |
| logger.warn( |
| "Incorrect property value for relativeURIs: " + flag |
| ); |
| } |
| return rslt; |
| } |
| |
| } |
