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MemCopy: Buffer support, generate from template, add "subarray-copy"
* Add generic parameter S to MemCopy<S,T> S is source, e.g., float[] or FloatBuffer T is target, e.g., float[] or FloatBuffer * Generate MemCopy.java from velocity template (run bin/generate.groovy to generate) * new method copyNDRangeRecursive() copies sub-region between flattened arrays (of different sizes)
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| #!/usr/bin/env groovy | ||
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| /* | ||
| * #%L | ||
| * SciJava Operations: a framework for reusable algorithms. | ||
| * %% | ||
| * Copyright (C) 2018 SciJava developers. | ||
| * %% | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * | ||
| * 1. Redistributions of source code must retain the above copyright notice, | ||
| * this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright notice, | ||
| * this list of conditions and the following disclaimer in the documentation | ||
| * and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE | ||
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGE. | ||
| * #L% | ||
| */ | ||
|
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| debug = System.getenv('DEBUG') | ||
| def debug(msg) { | ||
| if (debug) System.err.println("[DEBUG] $msg") | ||
| } | ||
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| @Grab('org.apache.velocity:velocity:1.7') | ||
| import org.apache.velocity.app.VelocityEngine | ||
|
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| // TODO: Get path to Groovy script and make these dirs relative to that. | ||
| templateDirectory = 'templates' | ||
| outputDirectory = 'src' | ||
|
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| knownFiles = new java.util.HashSet(); | ||
|
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| /* Gets the last modified timestamp for the given file. */ | ||
| def timestamp(dir, file) { | ||
| if (file == null) return Long.MAX_VALUE; | ||
| file = new java.io.File(dir, file); | ||
| knownFiles.add(file); | ||
| return file.lastModified(); | ||
| } | ||
|
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| /* Processes a template using Apache Velocity. */ | ||
| def processTemplate(engine, context, templateFile, outFilename) { | ||
| debug("processTemplate('$engine', '$context', '$templateFile', '$outFilename')") | ||
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| if (outFilename == null) return; // nothing to do | ||
|
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| // create output directory if it does not already exist | ||
| outFile = new java.io.File(outputDirectory, outFilename); | ||
| knownFiles.add(outFile); | ||
| if (outFile.getParentFile() != null) outFile.getParentFile().mkdirs(); | ||
|
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| // apply the template and write out the result | ||
| t = engine.getTemplate(templateFile); | ||
| writer = new StringWriter(); | ||
| t.merge(context, writer); | ||
| out = new PrintWriter(outFile, "UTF-8"); | ||
| out.print(writer.toString()); | ||
| out.close(); | ||
| } | ||
|
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||
| /* Evaluates a string using Groovy. */ | ||
| def parseValue(sh, translationsFile, key, expression) { | ||
| try { | ||
| result = sh.evaluate(expression) | ||
| sh.setVariable(key, result) | ||
| return result | ||
| } | ||
| catch (groovy.lang.GroovyRuntimeException e) { | ||
| print("[WARNING] $translationsFile: " + | ||
| "key '$key' has unparseable value: " + e.getMessage()); | ||
| } | ||
| } | ||
|
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| /* Reads a translations File */ | ||
| def readTranslation(engine, globalContext, reader, templateSubdirectory, templateFile, translationsFile, isInclude){ | ||
| sh = new groovy.lang.GroovyShell(); | ||
| for (;;) { | ||
| // read the line | ||
| line = reader.readLine(); | ||
|
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| if (line == null) break; | ||
| // check if the line starts a new section | ||
| if (line.startsWith("[") && line.endsWith("]")) { | ||
| // if we are parsing a .include file, return when we hit any sections | ||
| if(isInclude){ | ||
| println("[WARNING] $translationsFile: Section definition in .include file. Ending processing of $translationsFile"); | ||
| return context; | ||
| } | ||
| // write out the previous file | ||
| processTemplate(engine, context, templateFile, outputFilename); | ||
|
|
||
| // start a new file | ||
| outputFilename = line.substring(1, line.length() - 1); | ||
| if (!templateDirectory.equals(templateSubdirectory)) { | ||
| subPath = templateSubdirectory.substring(templateDirectory.length() + 1); | ||
| outputFilename = "$subPath/$outputFilename"; | ||
| } | ||
| context = new org.apache.velocity.VelocityContext(globalContext); | ||
| continue; | ||
| } | ||
|
|
||
| // ignore blank lines | ||
| trimmedLine = line.trim(); | ||
| if (trimmedLine.isEmpty()) continue; | ||
|
|
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| // ignore comments | ||
| if (trimmedLine.startsWith("#")) continue; | ||
|
|
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| // include any global files | ||
| if (trimmedLine.startsWith(".include")){ | ||
| includeFile = line.substring(9); | ||
| if(includeFile.startsWith("templates")){ | ||
| includeSubdirectory = includeFile.substring(0, includeFile.lastIndexOf("/")) | ||
| includeFile = includeFile.substring(includeFile.lastIndexOf("/")) | ||
| } | ||
| else{ | ||
| includeSubdirectory = templateSubdirectory | ||
| } | ||
| globalReader = new java.io.BufferedReader(new java.io.FileReader("$includeSubdirectory/$includeFile")); | ||
| encapsulatedContext = new org.apache.velocity.VelocityContext(context) | ||
| context = readTranslation(engine, encapsulatedContext, globalReader, templateSubdirectory, templateFile, includeFile, true) | ||
| continue; | ||
| } | ||
|
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| if (!line.contains('=')) { | ||
| print("[WARNING] $translationsFile: Ignoring spurious line: $line"); | ||
| continue; | ||
| } | ||
|
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| int idx = line.indexOf('='); | ||
| key = line.substring(0, idx).trim(); | ||
| value = line.substring(idx + 1); | ||
|
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| if (value.trim().equals('```')) { | ||
| // multi-line value | ||
| builder = new StringBuilder(); | ||
| for (;;) { | ||
| line = reader.readLine(); | ||
| if (line == null) { | ||
| throw new RuntimeException("Unfinished value: " + builder.toString()); | ||
| } | ||
| if (line.equals('```')) { | ||
| break; | ||
| } | ||
| if (builder.length() > 0) { | ||
| builder.append("\n"); | ||
| } | ||
| builder.append(line); | ||
| } | ||
| value = builder.toString(); | ||
| } | ||
|
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| context.put(key, parseValue(sh, translationsFile, key, value)); | ||
| } | ||
|
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| return context; | ||
| } | ||
|
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| /* | ||
| * Translates a template into many files in the outputDirectory, | ||
| * given a translations file in INI style; e.g.: | ||
| * | ||
| * [filename1] | ||
| * variable1 = value1 | ||
| * variable2 = value2 | ||
| * ... | ||
| * [filename2] | ||
| * variable1 = value3 | ||
| * variable2 = value4 | ||
| * ... | ||
| */ | ||
| def translate(templateSubdirectory, templateFile, translationsFile) { | ||
| debug("translate('$templateSubdirectory', '$templateFile', '$translationsFile')") | ||
|
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| // initialize the Velocity engine | ||
| engine = new org.apache.velocity.app.VelocityEngine(); | ||
| p = new java.util.Properties(); | ||
| // fail if template uses an invalid expression; e.g., an undefined variable | ||
| p.setProperty("runtime.references.strict", "true"); | ||
| // tell Velocity where the templates are located | ||
| p.setProperty("file.resource.loader.path", "$templateSubdirectory"); | ||
| // tell Velocity to log to stderr rather than to a velocity.log file | ||
| p.setProperty(org.apache.velocity.runtime.RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, | ||
| "org.apache.velocity.runtime.log.SystemLogChute"); | ||
| engine.init(p); | ||
|
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| // read translation lines | ||
| outputFilename = null; | ||
| context = globalContext = new org.apache.velocity.VelocityContext(); | ||
| reader = new java.io.BufferedReader(new java.io.FileReader("$templateSubdirectory/$translationsFile")); | ||
|
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| readTranslation(engine, context, reader, templateSubdirectory, templateFile, translationsFile, false); | ||
|
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| reader.close(); | ||
|
|
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| // process the template | ||
| processTemplate(engine, context, templateFile, outputFilename); | ||
| } | ||
|
|
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| /* Recursively translates all templates in the given directory. */ | ||
| def translateDirectory(templateSubdirectory) { | ||
| debug("translateDirectory('$templateSubdirectory')") | ||
|
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| for (file in new java.io.File(templateSubdirectory).listFiles()) { | ||
| if (file.isDirectory()) { | ||
| // process subdirectories recursively | ||
| translateDirectory(file.getPath()); | ||
| } | ||
| else { | ||
| // process Velocity template files only | ||
| name = file.getName(); | ||
| if (!name.endsWith('.vm')) continue; | ||
| prefix = name.substring(0, name.lastIndexOf('.')); | ||
| translate(templateSubdirectory, name, prefix + '.list'); | ||
| } | ||
| } | ||
| } | ||
|
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| try { | ||
| translateDirectory(templateDirectory); | ||
| } | ||
| catch (Throwable t) { | ||
| t.printStackTrace(System.err); | ||
| throw t; | ||
| } |
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