Example usage for org.apache.commons.compress.archivers.zip ZipArchiveEntry getExtraField

Introduction

In this page you can find the example usage for org.apache.commons.compress.archivers.zip ZipArchiveEntry getExtraField.

Prototype

public ZipExtraField getExtraField(ZipShort type) 

Source Link

Document

Looks up an extra field by its header id.

Usage

From source file:com.zimbra.cs.util.ZipUtil.java

/**
 * Use InfoZIP Unicode Extra Fields (if present) to set the filename
 *///from  w  w  w  .  j a  va  2s  . c om
private static String getNameFromUnicodeExtraPathIfPresent(ZipArchiveEntry zae) {
    UnicodePathExtraField unicodePathExtraField = (UnicodePathExtraField) zae
            .getExtraField(UnicodePathExtraField.UPATH_ID);
    if (null == unicodePathExtraField) {
        return null;
    }
    CRC32 crc32 = new CRC32();
    crc32.update(zae.getRawName());
    long origCRC32 = crc32.getValue();

    if (origCRC32 == unicodePathExtraField.getNameCRC32()) {
        String val = convertBytesIfPossible(unicodePathExtraField.getUnicodeName(), StandardCharsets.UTF_8);
        if (null != val) {
            ZimbraLog.misc.debug("ZipUtil name '%s' from unicodeExtraPath", val);
        }
        return val;
    }
    return null;
}

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From source file:org.callimachusproject.io.ContentTypeExtraField.java

static String parseExtraField(ZipArchiveEntry entry) {
    try {//from  w w  w  .  j  av  a2 s  .c o m
        ZipExtraField field = entry.getExtraField(ID);
        if (field == null)
            return null;
        byte[] data = field.getLocalFileDataData();
        String str = new String(data, "UTF-8");
        if (isContentType(str))
            return str;
    } catch (UnsupportedEncodingException e) {
        throw new AssertionError(e);
    }
    return null;
}

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From source file:org.callimachusproject.io.MetaTypeExtraField.java

static MetaTypeExtraField parseExtraField(ZipArchiveEntry entry) {
    try {//from ww  w .ja v  a 2 s  . c  om
        ZipExtraField field = entry.getExtraField(ID);
        if (field == null)
            return null;
        byte[] data = field.getLocalFileDataData();
        String str = new String(data, "UTF-8");
        if ("FILE".equals(str))
            return FILE;
        if ("FOLDER".equals(str))
            return FOLDER;
        if ("RDF".equals(str))
            return RDF;
        if ("RDFS".equals(str))
            return RDFS;
    } catch (UnsupportedEncodingException e) {
        throw new AssertionError(e);
    }
    return null;
}

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