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28 changes: 28 additions & 0 deletions
28
components/src/main/java/com/dlsc/jfxcentral2/utils/EmptyEntityResolver.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,28 @@ | ||
| package com.dlsc.jfxcentral2.utils; | ||
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| import org.xml.sax.EntityResolver; | ||
| import org.xml.sax.InputSource; | ||
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| import java.io.StringReader; | ||
| /** | ||
| * EmptyEntityResolver is a singleton implementation of the EntityResolver interface. | ||
| * Its main purpose is to prevent the XML parser from trying to access external DTDs or schemas | ||
| * when parsing an XML document. This can be particularly useful to avoid unnecessary network | ||
| * requests or potential blocking issues, such as getting HTTP 429 response codes. | ||
| * | ||
| * By providing an empty InputSource, we essentially tell the XML parser that there are no external | ||
| * entities to resolve, and it should continue parsing without trying to fetch them. | ||
| * | ||
| * Typical use case: | ||
| * When parsing SVG or any XML documents that reference external DTDs or schemas, | ||
| * you can use this resolver to speed up parsing and avoid potential network-related issues. | ||
| * | ||
| */ | ||
| public enum EmptyEntityResolver implements EntityResolver { | ||
| INSTANCE; | ||
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| @Override | ||
| public InputSource resolveEntity(String publicId, String systemId) { | ||
| return new InputSource(new StringReader("")); | ||
| } | ||
| } |
35 changes: 35 additions & 0 deletions
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components/src/main/java/com/dlsc/jfxcentral2/utils/FileUtil.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,35 @@ | ||
| package com.dlsc.jfxcentral2.utils; | ||
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| import java.io.File; | ||
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| public class FileUtil { | ||
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| /** | ||
| * Deletes files within a directory while skipping files that are in use. | ||
| * Delete files as much as possible, ignoring occupied files | ||
| * @param directory the directory to clear | ||
| */ | ||
| public static void clearDirectory(File directory) { | ||
| // check directory | ||
| if (directory == null || !directory.exists() || !directory.isDirectory()) { | ||
| return; | ||
| } | ||
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| File[] files = directory.listFiles(); | ||
| if (files == null) { | ||
| return; | ||
| } | ||
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| for (File file : files) { | ||
| if (file.isFile()) { | ||
| // Ignore file deletion results; | ||
| // Because the file may be in use and cannot be deleted, we just have to try to delete it. | ||
| file.delete(); | ||
| } else if (file.isDirectory()) { | ||
| clearDirectory(file); | ||
| file.delete(); | ||
| } | ||
| } | ||
| } | ||
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| } |
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