Java Pointer.getString方法代码示例

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * @param modelId
 * @param size
 * @return
 */
public Set<RenderEngineClash> finalizeClashesByGuid(Pointer modelId, int size) {
	Set<RenderEngineClash> clashes = new HashSet<RenderEngineClash>();
	Memory pG1 = new Memory(size * 4 * getPlatformMultiplier());
	Memory pG2 = new Memory(size * 4 * getPlatformMultiplier());
	engine.finalizeClashesByGuid(modelId, pG1, pG2);
	for (int i = 0; i < size; i++) {
		Pointer memory1 = pG1.getPointer(i * 4 * getPlatformMultiplier());
		String pG1Str = memory1.getString(0);
		Pointer memory2 = pG2.getPointer(i * 4 * getPlatformMultiplier());
		String pG2Str = memory2.getString(0);

		RenderEngineClash clash = new RenderEngineClash();
		clash.setGuid1(pG1Str);
		clash.setGuid2(pG2Str);
		clashes.add(clash);
	}
	return clashes;
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
@Override
public void invoke(Pointer streamRef, Pointer clientCallBackInfo, NativeLong numEvents, Pointer eventPaths, Pointer eventFlags, Pointer eventIds) {
    final long st = System.currentTimeMillis();
    final int length = numEvents.intValue();
    final Pointer[] pointers = eventPaths.getPointerArray(0, length);
    int flags[];
    if (eventFlags == null) {
        flags = new int[length];
        LOG.log(DEBUG_LOG_LEVEL, "FSEventStreamCallback eventFlags == null, expected int[] of size {0}", length); //NOI18N
    } else {
        flags = eventFlags.getIntArray(0, length);
    }
    for (int i=0; i<length; i++) {
        final Pointer p = pointers[i];
        int flag = flags[i];
        final String path = p.getString(0);

        if ((flag & kFSEventStreamEventFlagMustScanSubDirs) ==  kFSEventStreamEventFlagMustScanSubDirs ||
            (flag & kFSEventStreamEventFlagMount) == kFSEventStreamEventFlagMount ||
            (flag & kFSEventStreamEventFlagUnmount) == kFSEventStreamEventFlagUnmount) {
            events.add(ALL_CHANGE);
        } else {
            events.add(path);
        }
        LOG.log(DEBUG_LOG_LEVEL, "Event on {0}", new Object[]{path});
    }
    LOG.log(PERF_LOG_LEVEL, "Callback time: {0}", (System.currentTimeMillis() - st));
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Converts CFString object to String.
 * 
 * @param cfStringPointer Pointer to CFString object
 * @return String from CFString
 */
private String getStringFromCFStringRef(Pointer cfStringPointer) {
    if (cfStringPointer != null) {
        long lenght = cfLibrary.CFStringGetLength(cfStringPointer);
        long maxSize = cfLibrary.CFStringGetMaximumSizeForEncoding(lenght, 0x08000100); // 0x08000100 = UTF-8

        Pointer buffer = new Memory(maxSize);

        if (cfLibrary.CFStringGetCString(cfStringPointer, buffer, maxSize, 0x08000100)) { // 0x08000100 = UTF-8
            return buffer.getString(0L);
        }
    }
    
    return null;
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/** try to install our custom rule profile into sandbox_init() to block execution */
private static void macImpl(Path tmpFile) throws IOException {
    // first be defensive: we can give nice errors this way, at the very least.
    boolean supported = Constants.MAC_OS_X;
    if (supported == false) {
        throw new IllegalStateException("bug: should not be trying to initialize seatbelt for an unsupported OS");
    }

    // we couldn't link methods, could be some really ancient OS X (< Leopard) or some bug
    if (libc_mac == null) {
        throw new UnsupportedOperationException("seatbelt unavailable: could not link methods. requires Leopard or above.");
    }

    // write rules to a temporary file, which will be passed to sandbox_init()
    Path rules = Files.createTempFile(tmpFile, "es", "sb");
    Files.write(rules, Collections.singleton(SANDBOX_RULES));

    boolean success = false;
    try {
        PointerByReference errorRef = new PointerByReference();
        int ret = libc_mac.sandbox_init(rules.toAbsolutePath().toString(), SANDBOX_NAMED, errorRef);
        // if sandbox_init() fails, add the message from the OS (e.g. syntax error) and free the buffer
        if (ret != 0) {
            Pointer errorBuf = errorRef.getValue();
            RuntimeException e = new UnsupportedOperationException("sandbox_init(): " + errorBuf.getString(0));
            libc_mac.sandbox_free_error(errorBuf);
            throw e;
        }
        logger.debug("OS X seatbelt initialization successful");
        success = true;
    } finally {
        if (success) {
            Files.delete(rules);
        } else {
            IOUtils.deleteFilesIgnoringExceptions(rules);
        }
    }
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Returns a data field in the actual aggregate element.
 * 
 * @param aggregate
 *            Existing aggregation
 * @param elementIndex
 *            Position in the existing aggregation, first position is 0
 * @param valueType
 *            Type of output value
 * @return Value of the specific element in the aggregation
 */
public Object engiGetAggrElement(Pointer aggregate, int elementIndex, SdaiTypes valueType) {
	Object returnValue = null;
	switch (valueType) {
	case INTEGER:
		IntByReference intRef = new IntByReference();
		engine.engiGetAggrElement(aggregate, elementIndex, valueType.ordinal(), intRef);
		returnValue = new Integer(intRef.getValue());
		break;
	case REAL:
		DoubleByReference dblRef = new DoubleByReference();
		engine.engiGetAggrElement(aggregate, elementIndex, valueType.ordinal(), dblRef);
		returnValue = new Double(dblRef.getValue());
		break;
	case STRING:
		PointerByReference strRef = new PointerByReference();
		engine.engiGetAggrElement(aggregate, elementIndex, valueType.ordinal(), strRef);
		Pointer strPtr = strRef.getValue();
		if (strPtr != null)
			returnValue = strPtr.getString(0);
		break;
	default:
		PointerByReference ptrRef = new PointerByReference();
		engine.engiGetAggrElement(aggregate, elementIndex, valueType.ordinal(), ptrRef);
		returnValue = ptrRef.getValue();
		break;
	}
	return returnValue;
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Gets recognized text.
 *
 * @param filename input file name. Needed only for reading a UNLV zone
 * file.
 * @param pageNum page number; needed for hocr paging.
 * @return the recognized text
 */
protected String getOCRText(String filename, int pageNum) {
    if (filename != null && !filename.isEmpty()) {
        api.TessBaseAPISetInputName(handle, filename);
    }

    Pointer utf8Text = renderedFormat == RenderedFormat.HOCR ? api.TessBaseAPIGetHOCRText(handle, pageNum - 1) : api.TessBaseAPIGetUTF8Text(handle);
    String str = utf8Text.getString(0);
    api.TessDeleteText(utf8Text);
    return str;
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Gets recognized words at specified page iterator level.
 *
 * @param bi input image
 * @param pageIteratorLevel TessPageIteratorLevel enum
 * @return list of <code>Word</code>
 */
public List<Word> getWords(BufferedImage bi, int pageIteratorLevel) {
    this.init();
    this.setTessVariables();

    List<Word> words = new ArrayList<Word>();

    try {
        setImage(bi, null);

        api.TessBaseAPIRecognize(handle, null);
        TessResultIterator ri = api.TessBaseAPIGetIterator(handle);
        TessPageIterator pi = api.TessResultIteratorGetPageIterator(ri);
        api.TessPageIteratorBegin(pi);

        do {
            Pointer ptr = api.TessResultIteratorGetUTF8Text(ri, pageIteratorLevel);
            String text = ptr.getString(0);
            api.TessDeleteText(ptr);
            float confidence = api.TessResultIteratorConfidence(ri, pageIteratorLevel);
            IntBuffer leftB = IntBuffer.allocate(1);
            IntBuffer topB = IntBuffer.allocate(1);
            IntBuffer rightB = IntBuffer.allocate(1);
            IntBuffer bottomB = IntBuffer.allocate(1);
            api.TessPageIteratorBoundingBox(pi, pageIteratorLevel, leftB, topB, rightB, bottomB);
            int left = leftB.get();
            int top = topB.get();
            int right = rightB.get();
            int bottom = bottomB.get();
            Word word = new Word(text, confidence, new Rectangle(left, top, right - left, bottom - top));
            words.add(word);
        } while (api.TessPageIteratorNext(pi, pageIteratorLevel) == TRUE);

        return words;
    } catch (Exception e) {
        return words;
    } finally {
        dispose();
    }
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Gets recognized text.
 *
 * @param filename input file name. Needed only for reading a UNLV zone
 * file.
 * @param pageNum page number; needed for hocr paging.
 * @return the recognized text
 */
protected String getOCRText(String filename, int pageNum) {
    if (filename != null && !filename.isEmpty()) {
        TessBaseAPISetInputName(handle, filename);
    }

    Pointer utf8Text = renderedFormat == RenderedFormat.HOCR ? TessBaseAPIGetHOCRText(handle, pageNum - 1) : TessBaseAPIGetUTF8Text(handle);
    String str = utf8Text.getString(0);
    TessDeleteText(utf8Text);
    return str;
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/** try to install our custom rule profile into sandbox_init() to block execution */
private static void macImpl(Path tmpFile) throws IOException {
    // first be defensive: we can give nice errors this way, at the very least.
    boolean supported = Constants.MAC_OS_X;
    if (supported == false) {
        throw new IllegalStateException("bug: should not be trying to initialize seatbelt for an unsupported OS");
    }

    // we couldn't link methods, could be some really ancient OS X (< Leopard) or some bug
    if (libc_mac == null) {
        throw new UnsupportedOperationException("seatbelt unavailable: could not link methods. requires Leopard or above.");
    }

    // write rules to a temporary file, which will be passed to sandbox_init()
    Path rules = Files.createTempFile(tmpFile, "es", "sb");
    Files.write(rules, Collections.singleton(SANDBOX_RULES), StandardCharsets.UTF_8);

    boolean success = false;
    try {
        PointerByReference errorRef = new PointerByReference();
        int ret = libc_mac.sandbox_init(rules.toAbsolutePath().toString(), SANDBOX_NAMED, errorRef);
        // if sandbox_init() fails, add the message from the OS (e.g. syntax error) and free the buffer
        if (ret != 0) {
            Pointer errorBuf = errorRef.getValue();
            RuntimeException e = new UnsupportedOperationException("sandbox_init(): " + errorBuf.getString(0));
            libc_mac.sandbox_free_error(errorBuf);
            throw e;
        }
        logger.debug("OS X seatbelt initialization successful");
        success = true;
    } finally {
        if (success) {
            Files.delete(rules);
        } else {
            IOUtils.deleteFilesIgnoringExceptions(rules);
        }
    }
}
 

import com.sun.jna.Pointer; //导入方法依赖的package包/类
/**
 * Gets recognized words at specified page iterator level.
 *
 * @param bi input image
 * @param pageIteratorLevel TessPageIteratorLevel enum
 * @return list of <code>Word</code>
 */

public List<Word> getWords(BufferedImage bi, int pageIteratorLevel) {
    this.init();
    this.setTessVariables();

    List<Word> words = new ArrayList<Word>();

    try {
        setImage(bi, null);

        TessBaseAPIRecognize(handle, null);
        TessResultIterator ri = TessBaseAPIGetIterator(handle);
        TessPageIterator pi = TessResultIteratorGetPageIterator(ri);
        TessPageIteratorBegin(pi);

        do {
            Pointer ptr = TessResultIteratorGetUTF8Text(ri, pageIteratorLevel);
            String text = ptr.getString(0);
            TessAPI1.TessDeleteText(ptr);
            float confidence = TessResultIteratorConfidence(ri, pageIteratorLevel);
            IntBuffer leftB = IntBuffer.allocate(1);
            IntBuffer topB = IntBuffer.allocate(1);
            IntBuffer rightB = IntBuffer.allocate(1);
            IntBuffer bottomB = IntBuffer.allocate(1);
            TessPageIteratorBoundingBox(pi, pageIteratorLevel, leftB, topB, rightB, bottomB);
            int left = leftB.get();
            int top = topB.get();
            int right = rightB.get();
            int bottom = bottomB.get();
            Word word = new Word(text, confidence, new Rectangle(left, top, right - left, bottom - top));
            words.add(word);
        } while (TessPageIteratorNext(pi, pageIteratorLevel) == TRUE);

        return words;
    } catch (Exception e) {
        return words;
    } finally {
        dispose();
    }
}