Examples of org.rhq.core.util.TokenReplacingReader

org.rhq.core.util.TokenReplacingReader
ials.jenkov.com/java-howto/replace-strings-in-streams-arrays-files.html with fixes to {@link #read(char[],int,int)} and added support for escaping.
Since RHQ 4.13, this class has been enhanced to be in line with the formats supported by the {@link StringPropertyReplacer}. The following constructs have been added:
- {@code} $p:v}} if token {@code p} is not found in the backing map, the provided value {@code v} is usedinstead of keeping the literal "${p}" in the output.
- {@code} $p1,p2:v}} if token {@code p1} is not found in the backing map, the expression is replaced by thevalue of token {@code p2} or value {@code v} if {@code p2} is not present either.
@author Lukas Krejci

        try {
            if (log.isInfoEnabled()) {
                log.info("Applying configuration changes to " + filteredFile);
            }
            File rhqFile = new File(confDir, "rhq." + fileName);
            TokenReplacingReader reader = new TokenReplacingReader(new FileReader(rhqFile), tokens);


            StreamUtil.copy(reader, new FileWriter(filteredFile));
            rhqFile.delete();
        } catch (IOException e) {
            log.error("An unexpected error occurred while apply configuration changes to " + filteredFile, e);

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                if (rawConnectionString == null) {
                    return null;
                }


                TokenReplacingReader trr = new TokenReplacingReader(new StringReader(rawConnectionString), props);
                try {
                    return StreamUtil.slurp(trr);
                } finally {
                    StreamUtil.safeClose(trr);
                }

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        inventoryFileReplacements = replacements;


        if (inventoryFile != null) {
            InputStream dataStream = getClass().getResourceAsStream(inventoryFile);


            Reader rdr = new TokenReplacingReader(new InputStreamReader(dataStream), replacements);


            @SuppressWarnings("unchecked")
            List<Resource> inventory = (List<Resource>) new ObjectCollectionSerializer().deserialize(rdr);


            //fix up the parent relationships, because they might not be reconstructed correctly by

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            try {
                File tmp = File.createTempFile("apache-deployment-util", null);


                FileWriter wrt = new FileWriter(tmp);
                try {
                    Reader rdr = new TokenReplacingReader(new FileReader(file), replacements);
                    try {
                        int cnt = -1;
                        while ((cnt = rdr.read(buffer)) != -1) {
                            wrt.write(buffer, 0, cnt);
                        }
                    } finally {
                        rdr.close();
                    }
                } finally {
                    wrt.close();
                }

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                String serverName = getServerName();
                if (serverName == null) {
                    return null;
                }
                
                TokenReplacingReader rdr = new TokenReplacingReader(new StringReader(getServerName()), replacements);
                StringWriter wrt = new StringWriter(); 
                StreamUtil.copy(rdr, wrt);
                return wrt.toString();
            }

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                List<String> addresses = getAddresses();
                ListIterator<String> it = addresses.listIterator();
                while(it.hasNext()) {
                    String addr = it.next();
                    
                    TokenReplacingReader rdr = new TokenReplacingReader(new StringReader(addr), replacements);
                    StringWriter wrt = new StringWriter();
                    StreamUtil.copy(rdr, wrt);
                    it.set(wrt.toString());
                }

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        setup.withDefaultOverrides(testConfig.defaultOverrides);
    }


    protected String interpret(String string, Map<String, String> variables) {
        return StreamUtil.slurp(new TokenReplacingReader(new StringReader(string), variables));
    }

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