Examples of org.apache.xerces.util.URI

org.apache.xerces.util.URI
etf.org/rfc/rfc2396.txt?number=2396>. Every URI consists of a scheme, followed by a colon (':'), followed by a scheme-specific part. For URIs that follow the "generic URI" syntax, the scheme- specific part begins with two slashes ("//") and may be followed by an authority segment (comprised of user information, host, and port), path segment, query segment and fragment. Note that RFC 2396 no longer specifies the use of the parameters segment and excludes the "user:password" syntax as part of the authority segment. If "user:password" appears in a URI, the entire user/password string is stored as userinfo.
For URIs that do not follow the "generic URI" syntax (e.g. mailto), the entire scheme-specific part is treated as the "path" portion of the URI.
Note that, unlike the java.net.URL class, this class does not provide any built-in network access functionality nor does it provide any scheme-specific functionality (for example, it does not know a default port for a specific scheme). Rather, it only knows the grammar and basic set of operations that can be applied to a URI. @version $Id: URI.java,v 1.1.2.1 2000/10/05 01:59:28 andyc Exp $

                reportResourceError("XMLResourceError", new Object[] { href, reason });
                return false;
            }
        }


        URI hrefURI = null;
        
        // Check whether href is correct and perform escaping as per section 4.1.1 of the XInclude spec.
        // Report fatal error if the href value contains a fragment identifier or if the value after
        // escaping is a syntactically invalid URI or IRI.
        try {
            hrefURI = new URI(href, true);
            if (hrefURI.getFragment() != null) {
                reportFatalError("HrefFragmentIdentifierIllegal", new Object[] {href});
            }
        }
        catch (URI.MalformedURIException exc) {
            String newHref = escapeHref(href);
            if (href != newHref) {
                href = newHref;
                try {
                    hrefURI = new URI(href, true);
                    if (hrefURI.getFragment() != null) {
                        reportFatalError("HrefFragmentIdentifierIllegal", new Object[] {href});
                    }
                }
                catch (URI.MalformedURIException exc2) {
                    reportFatalError("HrefSyntacticallyInvalid", new Object[] {href});

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                }
                if (fParentRelativeURI.equals("")) {
                    return relativeURI;
                }


                URI base = new URI(fParentRelativeURI, true);
                URI uri = new URI(base, relativeURI);
                
                /** Check whether the scheme components are equal. */
                final String baseScheme = base.getScheme();
                final String literalScheme = uri.getScheme();
                if (!isEqual(baseScheme, literalScheme)) {
                    return relativeURI;
                }
                
                /** Check whether the authority components are equal. */
                final String baseAuthority = base.getAuthority();
                final String literalAuthority = uri.getAuthority();
                if (!isEqual(baseAuthority, literalAuthority)) {
                    return uri.getSchemeSpecificPart();
                }
                
                /** 
                 * The scheme and authority components are equal,
                 * return the path and the possible query and/or
                 * fragment which follow.
                 */
                final String literalPath = uri.getPath();
                final String literalQuery = uri.getQueryString();
                final String literalFragment = uri.getFragment();
                if (literalQuery != null || literalFragment != null) {
                    StringBuffer buffer = new StringBuffer();
                    if (literalPath != null) {
                        buffer.append(literalPath);
                    }

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        int start = scopeOfBaseURI(depth) + 1;
        if (start == fBaseURIScope.size()) {
            // If that is the last system id, then we don't need a relative URI
            return "";
        }
        URI uri = new URI("file", (String)fLiteralSystemID.elementAt(start));
        for (int i = start + 1; i < fBaseURIScope.size(); i++) {
            uri = new URI(uri, (String)fLiteralSystemID.elementAt(i));
        }
        return uri.getPath();
    }

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            Attr attrNode = (Attr)attributes.getNamedItem("xml:base");
            if (attrNode != null) {
                String uri =  attrNode.getNodeValue();
                if (uri.length() != 0 ) {// attribute value is always empty string
                    try {
                       uri = new URI(baseURI, uri).toString();  
                    } 
                    catch (org.apache.xerces.util.URI.MalformedURIException e){
                        // REVISIT: what should happen in this case?
                        return null;
                    }

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        try {
            if( content.length() != 0 ) {
                // Support for relative URLs
                // According to Java 1.1: URLs may also be specified with a
                // String and the URL object that it is related to.
                new URI(BASE_URI, content );
            }
        } catch (URI.MalformedURIException ex) {
            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "anyURI"});
        }

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        if (systemId == null || systemId.length() == 0) {
            return systemId;
        }
        // if id already expanded, return
        try {
            URI uri = new URI(systemId);
            if (uri != null) {
                return systemId;
            }
        }
        catch (URI.MalformedURIException e) {
            // continue on...
        }
        // normalize id
        String id = fixURI(systemId);


        // normalize base
        URI base = null;
        URI uri = null;
        try {
            if (baseSystemId == null || baseSystemId.length() == 0 ||
                baseSystemId.equals(systemId)) {
                String dir;
                try {
                    dir = fixURI(getUserDir());
                }
                catch (SecurityException se) {
                    dir = "";
                }
                if (!dir.endsWith("/")) {
                    dir = dir + "/";
                }
                base = new URI("file", "", dir, null, null);
            }
            else {
                try {
                    base = new URI(fixURI(baseSystemId));
                }
                catch (URI.MalformedURIException e) {
                    String dir;
                    try {
                        dir = fixURI(getUserDir());
                    }
                    catch (SecurityException se) {
                        dir = "";
                    }
                    if (baseSystemId.indexOf(':') != -1) {
                        // for xml schemas we might have baseURI with
                        // a specified drive
                        base = new URI("file", "", fixURI(baseSystemId), null, null);
                    }
                    else {
                        if (!dir.endsWith("/")) {
                            dir = dir + "/";
                        }
                        dir = dir + fixURI(baseSystemId);
                        base = new URI("file", "", dir, null, null);
                    }
                }
             }
             // expand id
             uri = new URI(base, id);
        }
        catch (Exception e) {
            // let it go through


        }


        if (uri == null) {
            return systemId;
        }
        return uri.toString();


    } // expandSystemId(String,String):String

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            Attr attrNode = (Attr)attributes.getNamedItemNS("http://www.w3.org/XML/1998/namespace", "base");
            if (attrNode != null) {
                String uri =  attrNode.getNodeValue();
                if (uri.length() != 0 ) {// attribute value is always empty string
                    try {
                       uri = new URI(new URI(baseURI), uri).toString();  
                    } 
                    catch (org.apache.xerces.util.URI.MalformedURIException e){
                        // REVISIT: what should happen in this case?
                        return null;
                    }

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        if (systemId == null || systemId.length() == 0) {
            return systemId;
        }
        // if id already expanded, return
        try {
            URI uri = new URI(systemId);
            if (uri != null) {
                return systemId;
            }
        }
        catch (URI.MalformedURIException e) {
            // continue on...
        }
        // normalize id
        String id = fixURI(systemId);


        // normalize base
        URI base = null;
        URI uri = null;
        try {
            if (baseSystemId == null || baseSystemId.length() == 0 ||
                baseSystemId.equals(systemId)) {
                String dir;
                try {
                    dir = fixURI(System.getProperty("user.dir"));
                }
                catch (SecurityException se) {
                    dir = "";
                }
                if (!dir.endsWith("/")) {
                    dir = dir + "/";
                }
                base = new URI("file", "", dir, null, null);
            }
            else {
                try {
                    base = new URI(fixURI(baseSystemId));
                }
                catch (URI.MalformedURIException e) {
                    String dir;
                    try {
                        dir = fixURI(System.getProperty("user.dir"));
                    }
                    catch (SecurityException se) {
                        dir = "";
                    }
                    if (baseSystemId.indexOf(':') != -1) {
                        // for xml schemas we might have baseURI with
                        // a specified drive
                        base = new URI("file", "", fixURI(baseSystemId), null, null);
                    }
                    else {
                        if (!dir.endsWith("/")) {
                            dir = dir + "/";
                        }
                        dir = dir + fixURI(baseSystemId);
                        base = new URI("file", "", dir, null, null);
                    }
                }
             }
             // expand id
             uri = new URI(base, id);
        }
        catch (Exception e) {
            // let it go through


        }


        if (uri == null) {
            return systemId;
        }
        return uri.toString();


    } // expandSystemId(String,String):String

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                reportResourceError("XMLResourceError", new Object[] { href, reason });
                return false;
            }
        }


        URI hrefURI = null;
        
        // Check whether href is correct and perform escaping as per section 4.1.1 of the XInclude spec.
        // Report fatal error if the href value contains a fragment identifier or if the value after
        // escaping is a syntactically invalid URI or IRI.
        try {
            hrefURI = new URI(href, true);
            if (hrefURI.getFragment() != null) {
                reportFatalError("HrefFragmentIdentifierIllegal", new Object[] {href});
            }
        }
        catch (URI.MalformedURIException exc) {
            String newHref = escapeHref(href);
            if (href != newHref) {
                href = newHref;
                try {
                    hrefURI = new URI(href, true);
                    if (hrefURI.getFragment() != null) {
                        reportFatalError("HrefFragmentIdentifierIllegal", new Object[] {href});
                    }
                }
                catch (URI.MalformedURIException exc2) {
                    reportFatalError("HrefSyntacticallyInvalid", new Object[] {href});

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                }
                if (fParentRelativeURI.equals("")) {
                    return relativeURI;
                }


                URI base = new URI(fParentRelativeURI, true);
                URI uri = new URI(base, relativeURI);
                
                /** Check whether the scheme components are equal. */
                final String baseScheme = base.getScheme();
                final String literalScheme = uri.getScheme();
                if (!isEqual(baseScheme, literalScheme)) {
                    return relativeURI;
                }
                
                /** Check whether the authority components are equal. */
                final String baseAuthority = base.getAuthority();
                final String literalAuthority = uri.getAuthority();
                if (!isEqual(baseAuthority, literalAuthority)) {
                    return uri.getSchemeSpecificPart();
                }
                
                /** 
                 * The scheme and authority components are equal,
                 * return the path and the possible query and/or
                 * fragment which follow.
                 */
                final String literalPath = uri.getPath();
                final String literalQuery = uri.getQueryString();
                final String literalFragment = uri.getFragment();
                if (literalQuery != null || literalFragment != null) {
                    StringBuffer buffer = new StringBuffer();
                    if (literalPath != null) {
                        buffer.append(literalPath);
                    }

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