Examples of org.apache.tomcat.util.buf.B2CConverter

org.apache.tomcat.util.buf.B2CConverter
Efficient conversion of bytes to character . This uses the standard JDK mechansim - a reader - but provides mechanisms to recycle all the objects that are used. It is compatible with JDK1.1 and up, ( nio is better, but it's not available even in 1.2 or 1.3 ) Not used in the current code, the performance gain is not very big in the current case ( since String is created anyway ), but it will be used in a later version or after the remaining optimizations.

            private B2CConverter b2c;


            public CustomReader(InputStream is, String encoding) throws IOException {
                this.is = new BufferedInputStream(is);
                markSupported = is.markSupported();
                b2c = new B2CConverter(encoding);
            }

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                markSupported = is.markSupported();
                b2c = new B2CConverter(encoding);
            }


            public void setEncoding(String encoding) throws IOException {
                b2c = new B2CConverter(encoding);
            }

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (IOException e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                }
            } catch (IOException e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");

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                    conv = AccessController.doPrivileged(
                            new PrivilegedExceptionAction<B2CConverter>(){


                                @Override
                                public B2CConverter run() throws IOException {
                                    return new B2CConverter(enc);
                                }


                            }
                    );
                }catch(PrivilegedActionException ex){
                    Exception e = ex.getException();
                    if (e instanceof IOException) {
                        throw (IOException)e;
                    }
                }
            } else {
                conv = new B2CConverter(enc);
            }
            encoders.put(enc, conv);
        }


    }

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc, true);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (IOException e) {
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc, true);
                    uri.setChars(cc.getBuffer(), cc.getStart(), cc.getLength());
                    return;
                } catch (IOException ioe) {
                    // Should never happen as B2CConverter should replace
                    // problematic characters

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (Exception e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");

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                try{
                    conv = (B2CConverter)AccessController.doPrivileged(
                            new PrivilegedExceptionAction(){


                                public Object run() throws IOException{
                                    return new B2CConverter(enc);
                                }


                            }
                    );              
                }catch(PrivilegedActionException ex){
                    Exception e = ex.getException();
                    if (e instanceof IOException)
                        throw (IOException)e; 
                }
            } else {
                conv = new B2CConverter(enc);
            }
            encoders.put(enc, conv);
        }


    }

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (IOException e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");

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        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (Exception e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");

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