Example usage for com.google.common.base Strings isNullOrEmpty

List of usage examples for com.google.common.base Strings isNullOrEmpty

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Introduction

In this page you can find the example usage for com.google.common.base Strings isNullOrEmpty.

Prototype

public static boolean isNullOrEmpty(@Nullable String string)

Source Link

Document

Returns true if the given string is null or is the empty string.

Usage

From source file:org.haiku.haikudepotserver.dataobjects.UserRating.java

public static Optional<UserRating> tryGetByCode(ObjectContext context, String code) {
    Preconditions.checkArgument(null != context, "the context must be supplied");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(code), "the code must be supplied");
    return Optional.ofNullable(ObjectSelect.query(UserRating.class).where(CODE.eq(code)).selectOne(context));
}

From source file:org.haiku.haikudepotserver.dataobjects.PkgCategory.java

public static Optional<PkgCategory> getByCode(ObjectContext context, final String code) {
    Preconditions.checkArgument(null != context, "the context must be provided");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(code), "the code must be supplied");
    return getAll(context).stream().filter(pc -> pc.getCode().equals(code)).collect(SingleCollector.optional());
}

From source file:com.bccriskadvisory.link.utility.Utilities.java

public static boolean isNullOrEmpty(String input) {
    return Strings.isNullOrEmpty(input);
}

From source file:com.google.gerrit.testutil.SshMode.java

public static SshMode get() {
    String value = System.getenv(ENV_VAR);
    if (Strings.isNullOrEmpty(value)) {
        value = System.getProperty(SYS_PROP);
    }//from   ww  w .j a  va 2 s.co  m
    if (Strings.isNullOrEmpty(value)) {
        return YES;
    }
    value = value.toUpperCase();
    SshMode mode = Enums.getIfPresent(SshMode.class, value).orNull();
    if (!Strings.isNullOrEmpty(System.getenv(ENV_VAR))) {
        checkArgument(mode != null, "Invalid value for env variable %s: %s", ENV_VAR, System.getenv(ENV_VAR));
    } else {
        checkArgument(mode != null, "Invalid value for system property %s: %s", SYS_PROP,
                System.getProperty(SYS_PROP));
    }
    return mode;
}

From source file:com.palantir.lock.AtlasRowLockDescriptor.java

/** Returns a {@code LockDescriptor} instance for the given table and row. */
public static LockDescriptor of(String tableName, byte[] rowName) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(tableName));
    Preconditions.checkNotNull(rowName);
    byte[] tableBytes = tableName.getBytes();
    byte[] bytes = new byte[tableBytes.length + 1 + rowName.length];
    System.arraycopy(tableBytes, 0, bytes, 0, tableBytes.length);
    System.arraycopy(rowName, 0, bytes, tableBytes.length + 1, rowName.length);
    return new LockDescriptor(bytes);
}

From source file:com.microsoftopentechnologies.auth.utils.EncodingHelper.java

public static Map<String, String> parseKeyValueList(String input, char delimiter, boolean urlDecode) {
    if (Strings.isNullOrEmpty(input)) {
        return null;
    }//from  w w w  .ja va 2 s . c  o m

    Map<String, String> response = Splitter.on(delimiter).trimResults().omitEmptyStrings()
            .withKeyValueSeparator('=').split(input);

    if (urlDecode) {
        return Maps.transformValues(response, new Function<String, String>() {
            @Override
            public String apply(String s) {
                try {
                    return URLDecoder.decode(s, Charsets.UTF_8.name());
                } catch (UnsupportedEncodingException e) {
                    return s;
                }
            }
        });
    } else {
        return response;
    }
}

From source file:it.anyplace.sync.core.utils.PathUtils.java

public static boolean isRoot(String path) {
    return Strings.isNullOrEmpty(path);
}

From source file:com.vip.saturn.job.utils.ItemUtils.java

/**
 * ??./*from   ww  w .  ja va 2s .c om*/
 * 
 * @param itemsString 
 * @return 
 */
public static List<Integer> toItemList(final String itemsString) {
    if (Strings.isNullOrEmpty(itemsString)) {
        return Collections.emptyList();
    }
    String[] items = itemsString.split(DELIMITER);
    List<Integer> result = new ArrayList<>(items.length);
    for (String each : items) {
        int item = Integer.parseInt(each);
        if (!result.contains(item)) {
            result.add(item);
        }
    }
    return result;
}

From source file:buildcraftAdditions.ModIntegration.imc.IMCHandler.java

public static void handleIMC(List<FMLInterModComms.IMCMessage> messages) {

    for (FMLInterModComms.IMCMessage message : messages) {
        String type = message.key;

        if (Strings.isNullOrEmpty(type))
            continue;

        if (type.equals("addDustingRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);/*www  . j av a 2 s  .  c  om*/
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Dusting", tag, "Input", "Output"))
                continue;

            if (tag.hasKey("Output", Constants.NBT.TAG_COMPOUND)) {
                ItemStack output = ItemStack.loadItemStackFromNBT(tag.getCompoundTag("Output"));
                if (output == null)
                    continue;
                if (tag.hasKey("Input", Constants.NBT.TAG_STRING)) {
                    String oreInput = tag.getString("Input");
                    if (!Strings.isNullOrEmpty(oreInput))
                        BCARecipeManager.duster.addRecipe(oreInput, output);
                } else if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)) {
                    ItemStack input = ItemStack.loadItemStackFromNBT(tag.getCompoundTag("Input"));
                    if (input != null)
                        BCARecipeManager.duster.addRecipe(input, output);
                }
            }
        } else if (type.equals("addCoolingTowerRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Cooling Tower", tag, "Input", "Output", "Heat"))
                continue;

            if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)
                    && tag.hasKey("Output", Constants.NBT.TAG_COMPOUND)
                    && tag.hasKey("Heat", Constants.NBT.TAG_FLOAT)) {
                FluidStack input = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Input"));
                if (input == null)
                    continue;
                FluidStack output = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Output"));
                if (output == null)
                    continue;
                BCARecipeManager.cooling.addRecipe(input, output, tag.getFloat("Heat"));
            }
        } else if (type.equals("addRefineryRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Refinery", tag, "Input", "Output", "RequiredHeat"))
                continue;

            if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)
                    && tag.hasKey("Output", Constants.NBT.TAG_COMPOUND)
                    && tag.hasKey("RequiredHeat", Constants.NBT.TAG_INT)) {
                FluidStack input = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Input"));
                if (input == null)
                    continue;
                FluidStack output = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Output"));
                if (output == null)
                    continue;
                BCARecipeManager.refinery.addRecipe(input, output, tag.getInteger("RequiredHeat"));
            }
        } else if (type.equals("removeDustingRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Dusting", tag, "Input"))
                continue;

            if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)) {
                ItemStack input = ItemStack.loadItemStackFromNBT(tag.getCompoundTag("Input"));
                if (input == null)
                    continue;
                BCARecipeManager.duster.removeRecipe(input);
            }
        } else if (type.equals("removeCoolingRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Cooling Tower", tag, "Input"))
                continue;

            if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)) {
                FluidStack input = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Input"));
                if (input == null)
                    continue;
                BCARecipeManager.cooling.removeRecipe(input);
            }
        } else if (type.equals("removeRefineryRecipe")) {
            if (!message.isNBTMessage()) {
                logNotNBT(message);
                continue;
            }

            NBTTagCompound tag = message.getNBTValue();
            if (!checkRequiredNBTTags("Refinery", tag, "Input"))
                continue;

            if (tag.hasKey("Input", Constants.NBT.TAG_COMPOUND)) {
                FluidStack input = FluidStack.loadFluidStackFromNBT(tag.getCompoundTag("Input"));
                if (input == null)
                    continue;
                BCARecipeManager.refinery.removeRecipe(input);
            }
        }
    }
}

From source file:be.ohatv.btclients.Transmission.java

public static boolean addTorrent(String url, String magnet, String downloadpath) {
    try {//from   ww  w.j  a  va2  s.co m
        if (Strings.isNullOrEmpty(sessiontoken)) {
            getsessiontoken(url);
        }
        if (Strings.isNullOrEmpty(sessiontoken) == false) {
            JSONObject arg = new JSONObject();
            arg.put("filename", magnet);
            arg.put("download-dir", downloadpath);
            JSONObject json = new JSONObject();
            json.put("method", "torrent-add");
            json.put("arguments", arg);
            if (sendPost(url, json.toString(), "X-Transmission-Session-Id", sessiontoken) == false) {
                sessiontoken = null;
                return false;
            }
            return true;
        } else {
            DbFunctions.addNotifications(3, "Can't open session with Transmission.");
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return false;
}