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Pebble now works within an application container. Well at least glass…
…fish
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119 changes: 119 additions & 0 deletions
119
src/main/java/com/mitchellbosecke/pebble/loader/PebbleDefaultLoader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /******************************************************************************* | ||
| * This file is part of Pebble. | ||
| * | ||
| * Copyright (c) 2012 Mitchell Bosecke. | ||
| * | ||
| * This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 | ||
| * Unported License. To view a copy of this license, visit | ||
| * http://creativecommons.org/licenses/by-sa/3.0/ | ||
| ******************************************************************************/ | ||
| package com.mitchellbosecke.pebble.loader; | ||
|
|
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| import java.io.BufferedReader; | ||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.InputStreamReader; | ||
| import java.io.Reader; | ||
| import java.io.UnsupportedEncodingException; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
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| import org.apache.commons.io.IOUtils; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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|
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| import com.mitchellbosecke.pebble.error.LoaderException; | ||
|
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| public class PebbleDefaultLoader implements Loader { | ||
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| private static final Logger logger = LoggerFactory.getLogger(PebbleDefaultLoader.class); | ||
|
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| private String prefix; | ||
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| private String suffix; | ||
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| private Map<String, Reader> readerCache = new HashMap<>(); | ||
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| @Override | ||
| public String getSource(String templateName) throws LoaderException { | ||
| Reader location = getReader(templateName); | ||
| String source = null; | ||
|
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| try { | ||
| source = IOUtils.toString(location); | ||
| } catch (IOException e) { | ||
| throw new LoaderException("Template can not be found."); | ||
| } | ||
| return source; | ||
| } | ||
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| protected Reader getReader(String templateName) throws LoaderException { | ||
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| Reader reader = readerCache.containsKey(templateName) ? readerCache.get(templateName) : null; | ||
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| if (reader == null) { | ||
| InputStream is = null; | ||
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| String path = getPrefix().endsWith(String.valueOf(File.separatorChar)) ? getPrefix() : getPrefix() | ||
| + File.separatorChar; | ||
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| String location = path + templateName + (getSuffix() == null ? "" : getSuffix()); | ||
| logger.info("Looking for template in {}.", location); | ||
|
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| // try ContextClassLoader | ||
| ClassLoader ccl = Thread.currentThread().getContextClassLoader(); | ||
| is = ccl.getResourceAsStream(location); | ||
|
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| // try ResourceLoader's class loader | ||
| ClassLoader rcl = PebbleDefaultLoader.class.getClassLoader(); | ||
| if (is == null) { | ||
| is = rcl.getResourceAsStream(location); | ||
| } | ||
|
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| // try to load File | ||
| if (is == null) { | ||
| File file = new File(path, templateName); | ||
| if (file.exists() && file.isFile()) { | ||
| try { | ||
| is = new FileInputStream(file); | ||
| } catch (FileNotFoundException e) { | ||
| // TODO: throw exception? | ||
| } | ||
| } | ||
| } | ||
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| if (is == null) { | ||
| throw new LoaderException("Could not find template \"" + templateName + "\""); | ||
| } | ||
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| try { | ||
| reader = new BufferedReader(new InputStreamReader(is, "UTF-8")); | ||
| } catch (UnsupportedEncodingException e) { | ||
| } | ||
| } | ||
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| readerCache.put(templateName, reader); | ||
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| return reader; | ||
| } | ||
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| public String getSuffix() { | ||
| return suffix; | ||
| } | ||
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| public void setSuffix(String suffix) { | ||
| this.suffix = suffix; | ||
| } | ||
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| public String getPrefix() { | ||
| return prefix; | ||
| } | ||
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| public void setPrefix(String prefix) { | ||
| this.prefix = prefix; | ||
| } | ||
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| } |
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