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< span id = "sfml" > Google OR-Tools 8.1< / span >
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< h2 > Java Reference< / h2 >
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< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1sat.html" > CP-SAT< / a > < / li >
< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1graph.html" > Graph< / a > < / li >
< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1algorithms.html" > Knapsack solver< / a > < / li >
< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1linearsolver.html" > Linear solver< / a > < / li >
< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1constraintsolver.html" > Routing< / a > < / li >
< li > < a href = "../java/namespacecom_1_1google_1_1ortools_1_1util.html" > Util< / a > < / li >
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< h1 style = "color: #145A32;" > Java Reference< / h1 >
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< div class = "title" > Loader.java< / div > < / div >
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< a href = "Loader_8java.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "keyword" > package < / span > com.google.ortools;< / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "keyword" > import< / span > < a class = "code" href = "namespacecom.html" > com< / a > .sun.jna.Platform;< / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "keyword" > import< / span > java.io.IOException;< / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "keyword" > import< / span > java.net.URI;< / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "keyword" > import< / span > java.net.URISyntaxException;< / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "keyword" > import< / span > java.net.URL;< / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "keyword" > import< / span > java.nio.file.FileSystem;< / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "keyword" > import< / span > java.nio.file.FileSystems;< / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "keyword" > import< / span > java.nio.file.FileSystemAlreadyExistsException;< / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "keyword" > import< / span > java.nio.file.FileVisitResult;< / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "keyword" > import< / span > java.nio.file.Files;< / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "keyword" > import< / span > java.nio.file.Path;< / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "keyword" > import< / span > java.nio.file.SimpleFileVisitor;< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "keyword" > import< / span > java.nio.file.attribute.BasicFileAttributes;< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "keyword" > import< / span > java.util.Collections;< / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "keyword" > import< / span > java.util.Objects;< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > < a class = "line" href = "classcom_1_1google_1_1ortools_1_1Loader.html" > 20< / a > < / span >   < span class = "keyword" > public< / span > < span class = "keyword" > class < / span > < a class = "code" href = "classcom_1_1google_1_1ortools_1_1Loader.html" > Loader< / a > {< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keyword" > private< / span > < span class = "keyword" > static< / span > URI getNativeResourceURI() < span class = "keywordflow" > throws< / span > IOException {< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   ClassLoader loader = < a class = "code" href = "classcom_1_1google_1_1ortools_1_1Loader.html" > Loader< / a > .class.getClassLoader();< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   String resource = Platform.RESOURCE_PREFIX + < span class = "stringliteral" > " /" < / span > ;< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   URL resourceURL = loader.getResource(resource);< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   Objects.requireNonNull(resourceURL,< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   String.format(< span class = "stringliteral" > " Resource %s was not found in ClassLoader %s" < / span > , resource, loader));< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   URI resourceURI;< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keywordflow" > try< / span > {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   resourceURI = resourceURL.toURI();< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   } < span class = "keywordflow" > catch< / span > (URISyntaxException e) {< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keywordflow" > throw< / span > < span class = "keyword" > new< / span > IOException(e);< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   }< / div >
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< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   @FunctionalInterface< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "keyword" > private< / span > < span class = "keyword" > interface < / span > PathConsumer< T < span class = "keyword" > extends< / span > IOException> {< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "keywordtype" > void< / span > accept(Path path) < span class = "keywordflow" > throws< / span > T;< / div >
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< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keyword" > private< / span > < span class = "keyword" > static< / span > Path unpackNativeResources(URI resourceURI) < span class = "keywordflow" > throws< / span > IOException {< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   Path tempPath;< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   tempPath = Files.createTempDirectory(< span class = "stringliteral" > " ortools-java" < / span > );< / div >
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< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   PathConsumer< ?> visitor;< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   visitor = (Path sourcePath) -> Files.walkFileTree(sourcePath, < span class = "keyword" > new< / span > SimpleFileVisitor< Path> () {< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   @Override< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keyword" > public< / span > FileVisitResult visitFile(Path file, BasicFileAttributes attrs) < span class = "keywordflow" > throws< / span > IOException {< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   Path newPath = tempPath.resolve(sourcePath.getParent().relativize(file).toString());< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   Files.copy(file, newPath);< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   newPath.toFile().deleteOnExit();< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordflow" > return< / span > FileVisitResult.CONTINUE;< / div >
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< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   @Override< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keyword" > public< / span > FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordflow" > throws< / span > IOException {< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   Path newPath = tempPath.resolve(sourcePath.getParent().relativize(dir).toString());< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   Files.copy(dir, newPath);< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   newPath.toFile().deleteOnExit();< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keywordflow" > return< / span > FileVisitResult.CONTINUE;< / div >
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< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   FileSystem fs;< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keywordflow" > try< / span > {< / div >
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< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "keywordflow" > if< / span > (fs == < span class = "keyword" > null< / span > ) {< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keywordflow" > throw< / span > < span class = "keyword" > new< / span > IllegalArgumentException();< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   }< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   }< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   Path p = fs.provider().getPath(resourceURI);< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   visitor.accept(p);< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "keywordflow" > return< / span > tempPath;< / div >
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< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "keyword" > private< / span > < span class = "keyword" > static< / span > < span class = "keywordtype" > boolean< / span > loaded = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > < a class = "line" href = "classcom_1_1google_1_1ortools_1_1Loader.html#a9a2f42e70e4614116cbb84ce99984e4a" > 89< / a > < / span >   < span class = "keyword" > public< / span > < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "classcom_1_1google_1_1ortools_1_1Loader.html#a9a2f42e70e4614116cbb84ce99984e4a" > loadNativeLibraries< / a > () {< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "keywordflow" > if< / span > (!loaded) {< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordflow" > try< / span > {< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   URI resourceURI = getNativeResourceURI();< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   Path tempPath = unpackNativeResources(resourceURI);< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "comment" > // Load the native library< / span > < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   System.load(tempPath.resolve(Platform.RESOURCE_PREFIX)< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   .resolve(System.mapLibraryName(< span class = "stringliteral" > " jniortools" < / span > ))< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   .toString());< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   loaded = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   } < span class = "keywordflow" > catch< / span > (IOException e) {< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keywordflow" > throw< / span > < span class = "keyword" > new< / span > RuntimeException(e);< / div >
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< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   }< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   }< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   }< / div >
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< / div > <!-- fragment --> < / div > <!-- contents -->
< / div > <!-- doc - content -->
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< div class = "ttc" id = "aclasscom_1_1google_1_1ortools_1_1Loader_html_a9a2f42e70e4614116cbb84ce99984e4a" > < div class = "ttname" > < a href = "classcom_1_1google_1_1ortools_1_1Loader.html#a9a2f42e70e4614116cbb84ce99984e4a" > com.google.ortools.Loader.loadNativeLibraries< / a > < / div > < div class = "ttdeci" > static void loadNativeLibraries()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Loader_8java_source.html#l00089" > Loader.java:89< / a > < / div > < / div >
< div class = "ttc" id = "aclasscom_1_1google_1_1ortools_1_1Loader_html" > < div class = "ttname" > < a href = "classcom_1_1google_1_1ortools_1_1Loader.html" > com.google.ortools.Loader< / a > < / div > < div class = "ttdoc" > Load native libraries needed for using ortools-java.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Loader_8java_source.html#l00020" > Loader.java:20< / a > < / div > < / div >
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< div class = "ttc" id = "anamespacecom_html" > < div class = "ttname" > < a href = "namespacecom.html" > com< / a > < / div > < / div >
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< / div >
< div id = "footer-container" >
< div id = "footer" >
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