97 lines
3.5 KiB
Java
97 lines
3.5 KiB
Java
package nodomain.freeyourgadget.gadgetbridge.service.devices.miband;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Abstract Mi firmware info class with two child info instances.
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*/
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public abstract class CompositeMiFirmwareInfo<T extends AbstractMiFirmwareInfo> extends AbstractMiFirmwareInfo {
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private static final Logger LOG = LoggerFactory.getLogger(CompositeMiFirmwareInfo.class);
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private final T fw1Info;
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private final T fw2Info;
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protected CompositeMiFirmwareInfo(byte[] wholeFirmwareBytes, T info1, T info2) {
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super(wholeFirmwareBytes);
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fw1Info = info1;
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fw2Info = info2;
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}
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@Override
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public void checkValid() throws IllegalArgumentException {
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super.checkValid();
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if (getFirst().getFirmwareOffset() == getSecond().getFirmwareOffset()) {
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throw new IllegalArgumentException("Illegal firmware offsets: " + getLengthsOffsetsString());
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}
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if (getFirst().getFirmwareOffset() < 0 || getSecond().getFirmwareOffset() < 0
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|| getFirst().getFirmwareLength() <= 0 || getSecond().getFirmwareLength() <= 0) {
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throw new IllegalArgumentException("Illegal firmware offsets/lengths: " + getLengthsOffsetsString());
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}
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int firstEndIndex = getFirst().getFirmwareOffset() + getFirst().getFirmwareLength();
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if (getSecond().getFirmwareOffset() < firstEndIndex) {
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throw new IllegalArgumentException("Invalid firmware, second fw starts before first fw ends: " + firstEndIndex + "," + getSecond().getFirmwareOffset());
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}
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int secondEndIndex = getSecond().getFirmwareOffset();
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if (wholeFirmwareBytes.length < firstEndIndex || wholeFirmwareBytes.length < secondEndIndex) {
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throw new IllegalArgumentException("Invalid firmware size, or invalid offsets/lengths: " + getLengthsOffsetsString());
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}
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getFirst().checkValid();
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getSecond().checkValid();
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}
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protected String getLengthsOffsetsString() {
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return getFirst().getFirmwareOffset() + "," + getFirst().getFirmwareLength()
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+ "; "
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+ getSecond().getFirmwareOffset() + "," + getSecond().getFirmwareLength();
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}
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@Override
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public T getFirst() {
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return fw1Info;
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}
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@Override
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public T getSecond() {
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return fw2Info;
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}
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@Override
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protected boolean isGenerallySupportedFirmware() {
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try {
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if (!isHeaderValid()) {
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LOG.info("unrecognized header");
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return false;
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}
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return fw1Info.isGenerallySupportedFirmware()
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&& fw2Info.isGenerallySupportedFirmware()
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&& fw1Info.getFirmwareBytes().length > 0
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&& fw2Info.getFirmwareBytes().length > 0;
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} catch (IndexOutOfBoundsException ex) {
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LOG.warn("invalid firmware or bug: " + ex.getLocalizedMessage(), ex);
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return false;
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} catch (IllegalArgumentException ex) {
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LOG.warn("not supported 1S firmware: " + ex.getLocalizedMessage(), ex);
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return false;
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}
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}
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@Override
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public int getFirmwareOffset() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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@Override
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public int getFirmwareLength() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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@Override
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public int getFirmwareVersion() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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}
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