Examples of org.h2.store.DataReader.readFully()

org.h2.store.DataReader.readFully()
Read a number of bytes. @param buff the target buffer @param offset the offset within the target buffer @param len the number of bytes to read

            } else if (x == PageLog.UNDO) {
                int pageId = in.readVarInt();
                int size = in.readVarInt();
                byte[] data = new byte[pageSize];
                if (size == 0) {
                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);

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                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);
                    try {
                        compress.expand(compressBuffer, 0, size, data, 0, pageSize);
                    } catch (ArrayIndexOutOfBoundsException e) {
                        throw DbException.convertToIOException(e);
                    }

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            } else if (x == PageLog.UNDO) {
                int pageId = in.readVarInt();
                int size = in.readVarInt();
                byte[] data = new byte[pageSize];
                if (size == 0) {
                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);

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                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);
                    try {
                        compress.expand(compressBuffer, 0, size, data, 0, pageSize);
                    } catch (ArrayIndexOutOfBoundsException e) {
                        throw DbException.convertToIOException(e);
                    }

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            } else if (x == PageLog.UNDO) {
                int pageId = in.readVarInt();
                int size = in.readVarInt();
                byte[] data = new byte[pageSize];
                if (size == 0) {
                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);

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                    in.readFully(data, 0, pageSize);
                } else if (size == 1) {
                    // empty
                } else {
                    byte[] compressBuffer = new byte[size];
                    in.readFully(compressBuffer, 0, size);
                    compress.expand(compressBuffer, 0, size, data, 0, pageSize);
                }
                String typeName = "";
                int type = data[0];
                boolean last = (type & Page.FLAG_LAST) != 0;

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                        file.readFully(buffFile, off, l);
                    } catch (Exception e) {
                        a = e;
                    }
                    try {
                        mem.readFully(buffMem, off, l);
                    } catch (Exception e) {
                        b = e;
                    }
                    if (a != b) {
                        if (a == null || b == null) {

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        assertEquals(10000, fo.length());
        fo.close();
        assertEquals(10000, fs.length(fsBase + "/test"));
        fo = fs.openFileObject(fsBase + "/test", "r");
        byte[] test = new byte[10000];
        fo.readFully(test, 0, 10000);
        assertEquals(buffer, test);
        assertThrows(IOException.class, fo).write(test, 0, 10);
        assertThrows(IOException.class, fo).setFileLength(10);
        fo.close();
        long lastMod = fs.getLastModified(fsBase + "/test");

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                    len = (int) Math.min(len, ra.length() - ra.getFilePointer());
                    byte[] b1 = new byte[len];
                    byte[] b2 = new byte[len];
                    trace("readFully " + len);
                    ra.readFully(b1, 0, len);
                    f.readFully(b2, 0, len);
                    buff.append("readFully " + len + "\n");
                    assertEquals(b1, b2);
                    break;
                }
                case 4: {

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        stat.execute("create table test(id int, name varchar) as select 1, 'Hello World1'");
        conn.close();
        FileObject f = FileSystem.getInstance(getBaseDir()).openFileObject(getBaseDir() + "/recovery.h2.db", "rw");
        byte[] buff = new byte[Constants.DEFAULT_PAGE_SIZE];
        while (f.getFilePointer() < f.length()) {
            f.readFully(buff, 0, buff.length);
            if (new String(buff).indexOf("Hello World1") >= 0) {
                buff[buff.length - 1]++;
                f.seek(f.getFilePointer() - buff.length);
                f.write(buff, 0, buff.length);
            }

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