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Java actions for amazon integration
/*******************************************************************************
* (c) Copyright 2017 Hewlett-Packard Development Company, L.P.
* All rights reserved. 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
*
*******************************************************************************/
package io.cloudslang.content.amazon.utils;
import io.cloudslang.content.amazon.entities.aws.AuthorizationHeader;
import io.cloudslang.content.amazon.entities.inputs.InputsWrapper;
import io.cloudslang.content.amazon.services.AmazonSignatureService;
import org.apache.commons.validator.routines.InetAddressValidator;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.SignatureException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
import static io.cloudslang.content.amazon.entities.constants.Constants.Apis.S3_API;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.AVAILABILITY_ZONES;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.BLOCK_DEVICE_MAPPING;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.DELETE_ON_TERMINATION;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.DESCRIPTION;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.DEVICE_INDEX;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.FILTER;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.KEY;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.LISTENERS;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.MEMBER;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.NAME;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.NETWORK_INTERFACE;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.REGION_NAME;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.RESOURCE_ID;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.STANDARD;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.SUBNET_ID;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.TAG;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.VALUE;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.VALUES;
import static io.cloudslang.content.amazon.entities.constants.Constants.AwsParams.ZONE_NAME;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.AMAZON_HOSTNAME;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.AMPERSAND;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.COLON;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.COMMA_DELIMITER;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.DOT;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.EBS;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.EMPTY;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.EQUAL;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.NETWORK;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.NOT_RELEVANT;
import static io.cloudslang.content.amazon.entities.constants.Constants.Miscellaneous.SCOPE_SEPARATOR;
import static io.cloudslang.content.amazon.entities.constants.Constants.Values.DEFAULT_MAX_KEYS;
import static io.cloudslang.content.amazon.entities.constants.Constants.Values.ONE;
import static io.cloudslang.content.amazon.entities.constants.Constants.Values.START_INDEX;
import static io.cloudslang.content.amazon.entities.constants.Inputs.ElasticIpInputs.PRIVATE_IP_ADDRESSES_STRING;
import static io.cloudslang.content.amazon.entities.constants.Inputs.NetworkInputs.NETWORK_INTERFACE_ASSOCIATE_PUBLIC_IP_ADDRESS;
import static io.cloudslang.content.amazon.entities.constants.Inputs.NetworkInputs.NETWORK_INTERFACE_DELETE_ON_TERMINATION;
import static io.cloudslang.content.amazon.entities.constants.Inputs.NetworkInputs.NETWORK_INTERFACE_DESCRIPTION;
import static io.cloudslang.content.amazon.entities.constants.Inputs.NetworkInputs.NETWORK_INTERFACE_DEVICE_INDEX;
import static java.lang.String.valueOf;
import static java.util.Arrays.asList;
import static java.util.regex.Pattern.quote;
import static org.apache.commons.lang3.ArrayUtils.isNotEmpty;
import static org.apache.commons.lang3.StringUtils.indexOf;
import static org.apache.commons.lang3.StringUtils.isBlank;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import static org.apache.commons.lang3.StringUtils.split;
/**
* Created by Mihai Tusa.
* 2/24/2016.
*/
public final class InputsUtil {
private static final String ACTION = "Action";
private static final String ASSOCIATE_PUBLIC_IP_ADDRESS = "AssociatePublicIpAddress";
private static final String CANONICAL_HEADER_CONTENT_SHA = "x-amz-content-sha256";
private static final String GP2 = "gp2";
private static final String HTTPS_PROTOCOL = "https";
private static final String IO1 = "io1";
private static final String PRIVATE_IP_ADDRESSES = "PrivateIpAddresses";
private static final String SC1 = "sc1";
private static final String SPECIFIC_QUERY_PARAM_PREFIX = NETWORK_INTERFACE + DOT;
private static final String ST1 = "st1";
private static final String SUBNET_ID_INPUT = "subnetId";
private static final String VERSION = "Version";
private static final int MAXIMUM_ACCEPTED_MAX_KEY = 1;
private static final int MAXIMUM_EBS_SIZE = 16384;
private static final int MINIMUM_IO1_EBS_SIZE = 4;
private static final int MAXIMUM_INSTANCES_NUMBER = 50;
private static final int MINIMUM_INSTANCES_NUMBER = 1;
private static final int MINIMUM_MAX_RESULTS = 5;
private static final int MAXIMUM_MAX_RESULTS = 1000;
private static final int MAXIMUM_STANDARD_EBS_SIZE = 1024;
private static final int MINIMUM_SC1_AND_ST1_EBS_SIZE = 500;
private static final float MAXIMUM_VOLUME_AMOUNT = 16000f;
private static final float MINIMUM_VOLUME_AMOUNT = 0.5f;
private InputsUtil() {
// prevent instantiation
}
public static void setQueryApiHeaders(InputsWrapper inputs, Map headersMap, Map queryParamsMap)
throws SignatureException, MalformedURLException {
AuthorizationHeader signedHeaders = new AmazonSignatureService().signRequestHeaders(inputs, headersMap, queryParamsMap);
inputs.getHttpClientInputs().setHeaders(signedHeaders.getAuthorizationHeader());
if (S3_API.equalsIgnoreCase(inputs.getCommonInputs().getApiService())) {
inputs.getHttpClientInputs().setHeaders(CANONICAL_HEADER_CONTENT_SHA + COLON + signedHeaders.getSignature());
}
}
public static void setQueryApiParams(InputsWrapper inputs, Map queryParamsMap) {
String queryParamsString = getHeadersOrParamsString(queryParamsMap, EQUAL, AMPERSAND, true);
if (isNotBlank(queryParamsString)) {
inputs.getHttpClientInputs().setQueryParams(queryParamsString);
}
}
public static Map getHeadersOrQueryParamsMap(Map inputMap, String stringToSplit,
String delimiter, String customDelimiter, boolean trim) {
String[] headersOrParamsArray = stringToSplit.split(delimiter);
String[] values;
for (String headersOrParamsItem : headersOrParamsArray) {
values = headersOrParamsItem.split(quote(customDelimiter), 2);
String key = trim ? values[START_INDEX].trim().toLowerCase() : values[START_INDEX];
if (values.length > ONE) {
inputMap.put(key, values[ONE]);
} else {
inputMap.put(key, EMPTY);
}
}
return inputMap;
}
public static String getEndpointFromUrl(String input) throws MalformedURLException {
URL url = new URL(input);
String endpoint = url.getHost();
if (url.getPort() > START_INDEX) {
endpoint += COLON + url.getPort();
}
return endpoint;
}
public static String getUrlFromApiService(String endpoint, String apiService, String prefix) {
String insertionString = isBlank(prefix) ? apiService : prefix + DOT + apiService;
return isBlank(endpoint) ?
HTTPS_PROTOCOL + COLON + SCOPE_SEPARATOR + SCOPE_SEPARATOR + insertionString + DOT + AMAZON_HOSTNAME :
endpoint;
}
public static String getHeadersOrParamsString(Map headersOrParamsMap, String separator, String suffix,
boolean deleteLastChar) {
if (headersOrParamsMap.isEmpty()) {
return EMPTY;
}
StringBuilder sb = new StringBuilder();
for (Map.Entry entry : headersOrParamsMap.entrySet()) {
sb.append(entry.getKey());
sb.append(separator);
sb.append(entry.getValue());
sb.append(suffix);
}
if (deleteLastChar) {
return sb.deleteCharAt(sb.length() - ONE).toString();
}
return sb.toString();
}
public static String[] getStringsArray(String input, String condition, String delimiter) {
if (condition.equals(input)) {
return null;
}
return split(input, delimiter);
}
public static List getStringsList(String input, String delimiter) {
if (isBlank(input)) {
return null;
}
return new ArrayList<>(asList(input.split(quote(getDefaultStringInput(delimiter, COMMA_DELIMITER)))));
}
public static String getDefaultStringInput(String input, String defaultValue) {
return isBlank(input) ? defaultValue : input;
}
public static String getS3HostHeaderValue(String apiService, String bucketName) {
return isBlank(bucketName) ? apiService + DOT + AMAZON_HOSTNAME : bucketName + DOT + apiService + DOT + AMAZON_HOSTNAME;
}
public static String[] getArrayWithoutDuplicateEntries(String inputString, String inputName, String delimiter) {
String[] currentArray = getStringsArray(inputString, EMPTY, delimiter);
validateArrayAgainstDuplicateElements(currentArray, inputString, delimiter, inputName);
return currentArray;
}
public static void validateAgainstDifferentArraysLength(String[] firstArray, String[] secondArray,
String firstInputName, String secondInputName) {
if (isNotEmpty(firstArray) && isNotEmpty(secondArray) && firstArray.length != secondArray.length) {
throw new RuntimeException("The values provided: [" + firstInputName + "] and [" + secondInputName + "] " +
"cannot have different length!");
}
}
public static void putCollectionInQueryMap(Map queryParamsMap, String paramName, Collection set) {
if (set != null) {
int step;
Iterator iterator = set.iterator();
for (step = ONE; iterator.hasNext(); step++) {
String curValue = iterator.next();
queryParamsMap.put(String.format("%s.%d", paramName, step), curValue);
}
}
}
public static void setNetworkInterfaceSpecificQueryParams(Map queryParamsMap, InputsWrapper wrapper,
String[] referenceArray, int index) {
if (isNotBlank(wrapper.getNetworkInputs().getNetworkInterfaceDescription())) {
setSpecificQueryParamValue(queryParamsMap, referenceArray,
wrapper.getNetworkInputs().getNetworkInterfaceDescription(),
PRIVATE_IP_ADDRESSES_STRING, NETWORK_INTERFACE_DESCRIPTION, DESCRIPTION,
wrapper.getCommonInputs().getDelimiter(), index);
}
if (isNotBlank(wrapper.getCustomInputs().getSubnetId())) {
setSpecificQueryParamValue(queryParamsMap, referenceArray, wrapper.getCustomInputs().getSubnetId(),
PRIVATE_IP_ADDRESSES_STRING, SUBNET_ID_INPUT, SUBNET_ID, wrapper.getCommonInputs().getDelimiter(),
index);
}
if (isNotBlank(wrapper.getNetworkInputs().getNetworkInterfacesAssociatePublicIpAddressesString())) {
setSpecificBooleanQueryParam(queryParamsMap, referenceArray,
wrapper.getNetworkInputs().getNetworkInterfacesAssociatePublicIpAddressesString(),
PRIVATE_IP_ADDRESSES_STRING, NETWORK_INTERFACE_ASSOCIATE_PUBLIC_IP_ADDRESS, ASSOCIATE_PUBLIC_IP_ADDRESS,
wrapper.getCommonInputs().getDelimiter(), index, false);
}
if (isNotBlank(wrapper.getNetworkInputs().getNetworkInterfaceDeleteOnTermination())) {
setSpecificBooleanQueryParam(queryParamsMap, referenceArray,
wrapper.getNetworkInputs().getNetworkInterfaceDeleteOnTermination(),
PRIVATE_IP_ADDRESSES_STRING, NETWORK_INTERFACE_DELETE_ON_TERMINATION, DELETE_ON_TERMINATION,
wrapper.getCommonInputs().getDelimiter(), index, true);
}
if (isNotBlank(wrapper.getNetworkInputs().getNetworkInterfaceDeviceIndex())) {
setSpecificQueryParamValue(queryParamsMap, referenceArray,
wrapper.getNetworkInputs().getNetworkInterfaceDeviceIndex(),
PRIVATE_IP_ADDRESSES_STRING, NETWORK_INTERFACE_DEVICE_INDEX, DEVICE_INDEX,
wrapper.getCommonInputs().getDelimiter(), index);
} else {
queryParamsMap.put(NETWORK_INTERFACE + DOT + valueOf(index + ONE) + DOT + DEVICE_INDEX, valueOf(index));
}
}
/**
* If enforcedBoolean is "true" and string input is: null, empty, many empty chars, TrUe, tRuE... but not "false"
* then returns "true".
* If enforcedBoolean is "false" and string input is: null, empty, many empty chars, FaLsE, fAlSe... but not "true"
* then returns "false"
* This behavior is needed for inputs like: "imageNoReboot" when we want them to be set to "true" disregarding the
* value provided (null, empty, many empty chars, TrUe, tRuE) except the case when is "false"
*
* @param input String to be evaluated.
* @param enforcedBoolean Enforcement boolean.
* @return A boolean according with above description.
*/
public static boolean getEnforcedBooleanCondition(String input, boolean enforcedBoolean) {
return (enforcedBoolean) ? isTrueOrFalse(input) == Boolean.parseBoolean(input) : Boolean.parseBoolean(input);
}
public static int getValidInstancesCount(String input) {
return isBlank(input) ? MINIMUM_INSTANCES_NUMBER :
getValidInt(input, MINIMUM_INSTANCES_NUMBER, MAXIMUM_INSTANCES_NUMBER, getValidationException(input, true),
getValidationException(input, false));
}
public static String getMaxResultsCount(String input) {
return isBlank(input) ? NOT_RELEVANT :
valueOf(getValidInt(input, MINIMUM_MAX_RESULTS, MAXIMUM_MAX_RESULTS, getValidationException(input, true),
getValidationException(input, false)));
}
public static String getRelevantBooleanString(String input) {
if (isNotBlank(input) && (Boolean.TRUE.toString().equalsIgnoreCase(input) || Boolean.FALSE.toString().equalsIgnoreCase(input))) {
return input.toLowerCase();
}
return NOT_RELEVANT;
}
public static int getRelevantMaxKeys(String input) {
if (isBlank(input)) {
return DEFAULT_MAX_KEYS;
}
return getValidInt(input, MAXIMUM_ACCEPTED_MAX_KEY, Integer.MAX_VALUE, getValidationException(input, true), getValidationException(input, false));
}
public static String getValidVolumeAmount(String input) {
if (isBlank(input)) {
return NOT_RELEVANT;
}
try {
float floatInput = Float.parseFloat(input);
if (floatInput < MINIMUM_VOLUME_AMOUNT || floatInput > MAXIMUM_VOLUME_AMOUNT) {
throw new RuntimeException("Incorrect provided value: " + input + ". Valid values are positive floats " +
"between 0.5f and 16000.0f.");
}
return valueOf(floatInput);
} catch (NumberFormatException nfe) {
throw new RuntimeException("The provided value: " + input + " input must be float.");
}
}
public static String getValidKeyOrValueTag(String input, String pattern, boolean isKey, boolean condition,
boolean patternCheck, int keyMaxLength, int valueMaxLength) {
if (isKey && (condition || input.length() > keyMaxLength)) {
throw new RuntimeException(getValidationException(input, false));
} else if (!isKey && input.length() > valueMaxLength) {
throw new RuntimeException(getValidationException(input, false));
} else {
if (patternCheck) {
patternCheck(input, pattern);
}
return input;
}
}
public static void setOptionalMapEntry(Map inputMap, String key, String value, boolean condition) {
if (condition) {
inputMap.put(key, value);
}
}
public static void setCommonQueryParamsMap(Map queryParamsMap, String action, String version) {
queryParamsMap.put(ACTION, action);
queryParamsMap.put(VERSION, version);
}
public static String getQueryParamsSpecificString(String specificArea, int index) {
if (AVAILABILITY_ZONES.equalsIgnoreCase(specificArea)) {
return AVAILABILITY_ZONES + DOT + MEMBER + DOT + valueOf(index + ONE);
} else if (NETWORK.equalsIgnoreCase(specificArea)) {
return PRIVATE_IP_ADDRESSES + DOT + valueOf(index + ONE) + DOT;
} else if (BLOCK_DEVICE_MAPPING.equalsIgnoreCase(specificArea)) {
return BLOCK_DEVICE_MAPPING + DOT + valueOf(index + ONE) + DOT;
} else if (EBS.equalsIgnoreCase(specificArea)) {
return BLOCK_DEVICE_MAPPING + DOT + valueOf(index + ONE) + DOT + EBS + DOT;
} else if (LISTENERS.equalsIgnoreCase(specificArea)) {
return LISTENERS + DOT + MEMBER + DOT + valueOf(index + ONE) + DOT;
} else if (NAME.equalsIgnoreCase(specificArea)) {
return FILTER + DOT + valueOf(index + ONE) + DOT + NAME;
} else if (NETWORK_INTERFACE.equalsIgnoreCase(specificArea)) {
return NETWORK_INTERFACE + DOT + valueOf(index + ONE) + DOT + PRIVATE_IP_ADDRESSES + DOT +
valueOf(index + ONE) + DOT;
} else if (RESOURCE_ID.equalsIgnoreCase(specificArea)) {
return RESOURCE_ID + DOT + valueOf(index + ONE);
} else if (KEY.equalsIgnoreCase(specificArea)) {
return TAG + DOT + valueOf(index + ONE) + DOT + KEY;
} else if (VALUE.equalsIgnoreCase(specificArea)) {
return TAG + DOT + valueOf(index + ONE) + DOT + VALUE;
} else if (VALUES.equalsIgnoreCase(specificArea)) {
return FILTER + DOT + valueOf(index + ONE) + DOT + VALUE;
} else if (REGION_NAME.equalsIgnoreCase(specificArea)) {
return REGION_NAME + DOT + valueOf(index + ONE);
} else if (ZONE_NAME.equalsIgnoreCase(specificArea)) {
return ZONE_NAME + DOT + valueOf(index + ONE);
} else {
return EMPTY;
}
}
public static String getValidIPv4Address(String input) {
if (isNotBlank(input) && !new InetAddressValidator().isValidInet4Address(input)) {
throw new RuntimeException("The provided value for: " + input + " input must be a valid IPv4 address.");
}
return input;
}
public static String getValidCidrNotation(String input) {
if (!input.contains(SCOPE_SEPARATOR)) {
throw new RuntimeException("The provided value for: " + input + " input must be a valid CIDR notation.");
}
getValidIPv4Address(input.substring(START_INDEX, indexOf(input, SCOPE_SEPARATOR)));
return input;
}
public static String getValidEbsSize(String input, String ebsType) {
if (NOT_RELEVANT.equalsIgnoreCase(input)) {
return NOT_RELEVANT;
}
switch (ebsType) {
case STANDARD:
return (isBlank(input)) ? valueOf(ONE) :
valueOf(getValidInt(input, ONE, MAXIMUM_STANDARD_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
case IO1:
return isBlank(input) ? valueOf(MINIMUM_IO1_EBS_SIZE) :
valueOf(getValidInt(input, MINIMUM_IO1_EBS_SIZE, MAXIMUM_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
case GP2:
return isBlank(input) ? valueOf(ONE) :
valueOf(getValidInt(input, ONE, MAXIMUM_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
case SC1:
return isBlank(input) ? valueOf(MINIMUM_SC1_AND_ST1_EBS_SIZE) :
valueOf(getValidInt(input, MINIMUM_SC1_AND_ST1_EBS_SIZE, MAXIMUM_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
case ST1:
return isBlank(input) ? valueOf(MINIMUM_SC1_AND_ST1_EBS_SIZE) :
valueOf(getValidInt(input, MINIMUM_SC1_AND_ST1_EBS_SIZE, MAXIMUM_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
default:
return valueOf(getValidInt(input, ONE, MAXIMUM_STANDARD_EBS_SIZE,
getValidationException(input, true), getValidationException(input, false)));
}
}
static long getValidLong(String input, long defaultValue) {
if (isBlank(input)) {
return defaultValue;
}
try {
long longInput = Long.parseLong(input);
if (longInput < START_INDEX) {
throw new RuntimeException("Incorrect provided value: " + input + ". Valid values are positive longs.");
}
return longInput;
} catch (NumberFormatException nfe) {
throw new RuntimeException("The provided value: " + input + " input must be long.");
}
}
private static void patternCheck(String input, String regex) {
Pattern pattern = Pattern.compile(regex);
if (!pattern.matcher(input).matches()) {
throw new IllegalArgumentException(getValidationException(input, false));
}
}
private static String[] getValidStringArray(String[] referenceArray, String inputString, String condition,
String delimiter, String firstInputName, String secondInputName) {
String[] toValidateArray = getStringsArray(inputString, condition, delimiter);
validateAgainstDifferentArraysLength(referenceArray, toValidateArray, firstInputName, secondInputName);
return toValidateArray;
}
private static void validateArrayAgainstDuplicateElements(String[] toBeValidated, String inputString, String delimiter,
String inputName) {
if (toBeValidated != null && isNotBlank(inputString)) {
Set stringSet = getStringsSet(inputString, delimiter);
if (stringSet != null && toBeValidated.length != stringSet.size()) {
throw new RuntimeException("The value provided for: " + inputName + " input contain duplicate elements. " +
"Please provide unique elements!");
}
}
}
private static void setSpecificBooleanQueryParam(Map queryParamsMap, String[] referenceArray,
String inputString, String referenceInputName, String currentInputName,
String suffix, String delimiter, int index, boolean enforcedBoolean) {
String[] currentArray = getValidStringArray(referenceArray, inputString, EMPTY, delimiter, referenceInputName,
currentInputName);
setOptionalMapEntry(queryParamsMap, SPECIFIC_QUERY_PARAM_PREFIX + valueOf(index + ONE) + DOT + suffix,
valueOf(getEnforcedBooleanCondition(currentArray[index], enforcedBoolean)), currentArray.length > START_INDEX);
}
private static Set getStringsSet(String input, String delimiter) {
if (isBlank(input)) {
return null;
}
return new HashSet<>(asList(input.split(quote(getDefaultStringInput(delimiter, COMMA_DELIMITER)))));
}
private static void setSpecificQueryParamValue(Map queryParamsMap, String[] referenceArray,
String inputString, String referenceInputName, String currentInputName,
String suffix, String delimiter, int index) {
String[] currentArray = getValidStringArray(referenceArray, inputString, EMPTY, delimiter, referenceInputName,
currentInputName);
setOptionalMapEntry(queryParamsMap, SPECIFIC_QUERY_PARAM_PREFIX + valueOf(index + ONE) + DOT + suffix,
currentArray[index], currentArray.length > START_INDEX);
}
private static int getValidInt(String input, int minAllowed, int maxAllowed, String noIntError, String constrainsError) {
if (!isInt(input)) {
throw new RuntimeException(noIntError);
}
int intInput = Integer.parseInt(input);
if (intInput < minAllowed || intInput > maxAllowed) {
throw new RuntimeException(constrainsError);
}
return intInput;
}
private static boolean isInt(String input) {
try {
//noinspection ResultOfMethodCallIgnored
Integer.parseInt(input);
} catch (NumberFormatException nfe) {
return false;
}
return true;
}
private static boolean isTrueOrFalse(String input) {
return Boolean.FALSE.toString().equalsIgnoreCase(input) || Boolean.TRUE.toString().equalsIgnoreCase(input);
}
private static String getValidationException(String input, boolean invalid) {
return invalid ? "The provided value: " + input + " input must be integer." :
"Incorrect provided value: " + input + " input. The value doesn't meet conditions for general purpose usage.";
}
}