cs-tesseract/src/main/java/io/cloudslang/content/tesseract/utils/InputsValidation.java
/*
* Copyright 2022-2024 Open Text
* This program and the accompanying materials
* are made available under the terms of the Apache License v2.0 which accompany this distribution.
*
* The Apache License is available at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.cloudslang.content.tesseract.utils;
import io.cloudslang.content.utils.NumberUtilities;
import org.apache.commons.lang3.StringUtils;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import static io.cloudslang.content.tesseract.utils.Constants.*;
import static io.cloudslang.content.tesseract.utils.Inputs.*;
import static io.cloudslang.content.utils.BooleanUtilities.isValid;
import static org.apache.commons.lang3.StringUtils.EMPTY;
import static org.apache.commons.lang3.StringUtils.isEmpty;
public class InputsValidation {
@NotNull
public static List<String> verifyExtractTextInputs(@Nullable final String filePath,
@Nullable final String dataPath,
@Nullable final String textBlocks,
@Nullable final String deskew) {
return verifyCommonInputs(filePath, dataPath, textBlocks, deskew);
}
@NotNull
public static List<String> verifyExtractTextFromPDF(@Nullable final String filePath,
@Nullable final String dataPath,
@Nullable final String textBlocks,
@Nullable final String deskew,
@Nullable final String fromPage,
@Nullable final String toPage,
@Nullable final String pageIndex,
@Nullable final String dpi) {
final List<String> exceptionMessages = verifyCommonInputs(filePath, dataPath, textBlocks, deskew);
if (!StringUtils.equals(pageIndex, EMPTY)) {
String regex = "[0-9, /,]+";
final boolean matches = pageIndex.matches(regex);
if (!matches)
exceptionMessages.add(EXCEPTION_INVALID_INPUT);
} else {
if (!StringUtils.equals(fromPage, EMPTY))
addVerifyNumber(exceptionMessages, fromPage, FROM_PAGE);
if (!StringUtils.equals(toPage, EMPTY))
addVerifyNumber(exceptionMessages, toPage, TO_PAGE);
addVerifyNumber(exceptionMessages, dpi, DPI);
if (exceptionMessages.isEmpty() && !StringUtils.equals(fromPage, EMPTY) && !StringUtils.equals(toPage, EMPTY)) {
if (Integer.parseInt(fromPage) > Integer.parseInt(toPage))
exceptionMessages.add(EXCEPTION_INVALID_FROM_PAGE);
} else if (exceptionMessages.isEmpty() && !StringUtils.equals(fromPage, EMPTY) && StringUtils.equals(toPage, EMPTY) && StringUtils.equals(pageIndex, EMPTY)) {
exceptionMessages.add(EXCEPTION_INVALID_INPUT);
}
}
return exceptionMessages;
}
@NotNull
private static List<String> verifyCommonInputs(@Nullable final String filePath,
@Nullable final String dataPath,
@Nullable final String textBlocks,
@Nullable final String deskew) {
final List<String> exceptionMessages = new ArrayList<>();
addVerifyBoolean(exceptionMessages, textBlocks, TEXT_BLOCKS);
addVerifyBoolean(exceptionMessages, deskew, DESKEW);
addVerifyFilePath(exceptionMessages, filePath, FILE_PATH);
addVerifyDataPath(exceptionMessages, dataPath, DATA_PATH);
return exceptionMessages;
}
@NotNull
private static List<String> addVerifyFilePath(@NotNull List<String> exceptions, @Nullable final String filePath, @NotNull final String inputName) {
if (isEmpty(filePath)) {
exceptions.add(EXCEPTION_EMPTY_FILE);
} else if (!isEmpty(filePath) && !isValidFile(filePath)) {
exceptions.add(String.format(EXCEPTION_INVALID_FILE, filePath, inputName));
}
return exceptions;
}
@NotNull
public static List<String> addVerifyDataPath(@NotNull List<String> exceptions, @Nullable final String dataPath, @NotNull final String inputName) {
if (!isEmpty(dataPath) && !isValidFile(dataPath))
exceptions.add(String.format(EXCEPTION_INVALID_DATA_PATH, dataPath, inputName));
return exceptions;
}
@NotNull
private static List<String> addVerifyBoolean(@NotNull List<String> exceptions, @Nullable final String input, @NotNull final String inputName) {
if (isEmpty(input)) {
exceptions.add(String.format(EXCEPTION_NULL_EMPTY, inputName));
} else if (!isValid(input)) {
exceptions.add(String.format(EXCEPTION_INVALID_BOOLEAN, input, inputName));
}
return exceptions;
}
@NotNull
private static List<String> addVerifyNumber(@NotNull List<String> exceptions, @Nullable final String input, @NotNull final String inputName) {
if (!NumberUtilities.isValidInt(input)) {
exceptions.add(String.format(EXCEPTION_INVALID_NUMBER, input, inputName));
} else if (Integer.parseInt(input) <= 0) {
exceptions.add(String.format(EXCEPTION_INVALID_NUMBER, input, inputName));
}
return exceptions;
}
private static boolean isValidFile(@NotNull final String filePath) {
return new File(filePath).exists();
}
}