Example usage for org.apache.commons.compress.archivers.zip ZipShort ZipShort

Introduction

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

Prototype

public ZipShort(byte[] bytes) 

Source Link

Document

Create instance from bytes.

Usage

From source file:cz.muni.fi.xklinec.zipstream.Mallory.java

/**
 * Adds given number of bytes as a null padding to extra field.
 * Minimal padding is 8B. Maximal padding is PAD_BLOCK_MAX.
 * //ww w  . ja  v a 2s  .  c om
 * @param ze
 * @param padlen 
 */
public void addExtraPadding(ZipArchiveEntry ze, int padlen) {
    if (padlen < EXTRA_FIELD_SIZE) {
        throw new IllegalArgumentException(
                "Cannot add padding less than 8 B (due to compulsory extra field structure). Given size "
                        + padlen);
    }

    if (padlen > PAD_BLOCK_MAX) {
        throw new IllegalArgumentException(
                "Specified padding is too big, maximal size is " + PAD_BLOCK_MAX + " given size is " + padlen);
    }

    byte[] paddBuff = new byte[padlen - EXTRA_FIELD_SIZE];
    UnrecognizedExtraField zextra = new UnrecognizedExtraField();
    zextra.setHeaderId(new ZipShort(PAD_SIGNATURE));
    zextra.setLocalFileDataData(new byte[0]);
    zextra.setCentralDirectoryData(paddBuff);

    ze.addExtraField(zextra);
}

---

From source file:org.apache.ant.compress.taskdefs.ArchiveBase.java

/**
 * Extracts flags from a resource./*w w w .  j a v a  2  s  .  c om*/
 *
 * <p>ZipExceptions are only here for the code that translates
 * Ant's ZipExtraFields to CC ZipExtraFields and should never
 * actually be thrown.</p>
 */
protected ResourceFlags getFlags(Resource r) throws ZipException {
    if (r instanceof ArchiveResource) {
        if (r instanceof CommonsCompressArchiveResource) {
            if (r instanceof TarResource) {
                TarResource tr = (TarResource) r;
                return new ResourceFlags(tr.getMode(), tr.getUid(), tr.getGid(), tr.getUserName(),
                        tr.getGroup());
            } else if (r instanceof ZipResource) {
                ZipResource zr = (ZipResource) r;
                return new ResourceFlags(zr.getMode(), zr.getExtraFields(), zr.getMethod());
            } else {
                CommonsCompressArchiveResource cr = (CommonsCompressArchiveResource) r;
                return new ResourceFlags(cr.getMode(), cr.getUid(), cr.getGid());
            }
        } else if (r instanceof org.apache.tools.ant.types.resources.TarResource) {
            org.apache.tools.ant.types.resources.TarResource tr = (org.apache.tools.ant.types.resources.TarResource) r;
            return new ResourceFlags(tr.getMode(), tr.getUid(), tr.getGid(), tr.getUserName(), tr.getGroup());
        } else if (r instanceof org.apache.tools.ant.types.resources.ZipResource) {
            org.apache.tools.ant.types.resources.ZipResource zr = (org.apache.tools.ant.types.resources.ZipResource) r;

            org.apache.tools.zip.ZipExtraField[] extra = zr.getExtraFields();
            ZipExtraField[] ex = new ZipExtraField[extra == null ? 0 : extra.length];
            if (extra != null && extra.length > 0) {
                for (int i = 0; i < extra.length; i++) {
                    try {
                        ex[i] = ExtraFieldUtils
                                .createExtraField(new ZipShort(extra[i].getHeaderId().getValue()));
                    } catch (InstantiationException e) {
                        throw new BuildException(e);
                    } catch (IllegalAccessException e) {
                        throw new BuildException(e);
                    }
                    byte[] b = extra[i].getCentralDirectoryData();
                    ex[i].parseFromCentralDirectoryData(b, 0, b.length);
                    b = extra[i].getLocalFileDataData();
                    ex[i].parseFromLocalFileData(b, 0, b.length);
                }
            }

            return new ResourceFlags(zr.getMode(), ex, zr.getMethod());
        } else {
            ArchiveResource ar = (ArchiveResource) r;
            return new ResourceFlags(ar.getMode());
        }
    }
    return new ResourceFlags();
}

---

From source file:org.apache.james.mailbox.backup.LongExtraField.java

@Override
public ZipShort getLocalFileDataLength() {
    return new ZipShort(Long.BYTES);
}

---

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

public ZipShort getLocalFileDataLength() {
    return new ZipShort(data.length);
}

---